21167177220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{54721}}^1$

素因数の和:55050

約数の個数: 144

約数和(自身を含む): 73619914368

約数和(自身を除く): 52452737148

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 307, 315, 420, 614, 630, 921, 1228, 1260, 1535, 1842, 2149, 2763, 3070, 3684, 4298, 4605, 5526, 6140, 6447, 8596, 9210, 10745, 11052, 12894, 13815, 18420, 19341, 21490, 25788, 27630, 32235, 38682, 42980, 54721, 55260, 64470, 77364, 96705, 109442, 128940, 164163, 193410, 218884, 273605, 328326, 383047, 386820, 492489, 547210, 656652, 766094, 820815, 984978, 1094420, 1149141, 1532188, 1641630, 1915235, 1969956, 2298282, 2462445, 3283260, 3447423, 3830470, 4596564, 4924890, 5745705, 6894846, 7660940, 9849780, 11491410, 13789692, 16799347, 17237115, 22982820, 33598694, 34474230, 50398041, 67197388, 68948460, 83996735, 100796082, 117595429, 151194123, 167993470, 201592164, 235190858, 251990205, 302388246, 335986940, 352786287, 470381716, 503980410, 587977145, 604776492, 705572574, 755970615, 1007960820, 1058358861, 1175954290, 1411145148, 1511941230, 1763931435, 2116717722, 2351908580, 3023882460, 3527862870, 4233435444, 5291794305, 7055725740, 10583588610, 21167177220]

約数ペア:

[(1, 21167177220), (2, 10583588610), (3, 7055725740), (4, 5291794305), (5, 4233435444), (6, 3527862870), (7, 3023882460), (9, 2351908580), (10, 2116717722), (12, 1763931435), (14, 1511941230), (15, 1411145148), (18, 1175954290), (20, 1058358861), (21, 1007960820), (28, 755970615), (30, 705572574), (35, 604776492), (36, 587977145), (42, 503980410), (45, 470381716), (60, 352786287), (63, 335986940), (70, 302388246), (84, 251990205), (90, 235190858), (105, 201592164), (126, 167993470), (140, 151194123), (180, 117595429), (210, 100796082), (252, 83996735), (307, 68948460), (315, 67197388), (420, 50398041), (614, 34474230), (630, 33598694), (921, 22982820), (1228, 17237115), (1260, 16799347), (1535, 13789692), (1842, 11491410), (2149, 9849780), (2763, 7660940), (3070, 6894846), (3684, 5745705), (4298, 4924890), (4605, 4596564), (5526, 3830470), (6140, 3447423), (6447, 3283260), (8596, 2462445), (9210, 2298282), (10745, 1969956), (11052, 1915235), (12894, 1641630), (13815, 1532188), (18420, 1149141), (19341, 1094420), (21490, 984978), (25788, 820815), (27630, 766094), (32235, 656652), (38682, 547210), (42980, 492489), (54721, 386820), (55260, 383047), (64470, 328326), (77364, 273605), (96705, 218884), (109442, 193410), (128940, 164163)]