21388950

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1$

素因数の和:207

約数の個数: 144

約数和(自身を含む): 65286000

約数和(自身を除く): 43897050

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 25, 29, 30, 33, 45, 50, 55, 58, 66, 75, 87, 90, 99, 110, 145, 149, 150, 165, 174, 198, 225, 261, 275, 290, 298, 319, 330, 435, 447, 450, 495, 522, 550, 638, 725, 745, 825, 870, 894, 957, 990, 1305, 1341, 1450, 1490, 1595, 1639, 1650, 1914, 2175, 2235, 2475, 2610, 2682, 2871, 3190, 3278, 3725, 4321, 4350, 4470, 4785, 4917, 4950, 5742, 6525, 6705, 7450, 7975, 8195, 8642, 9570, 9834, 11175, 12963, 13050, 13410, 14355, 14751, 15950, 16390, 21605, 22350, 23925, 24585, 25926, 28710, 29502, 33525, 38889, 40975, 43210, 47531, 47850, 49170, 64815, 67050, 71775, 73755, 77778, 81950, 95062, 108025, 122925, 129630, 142593, 143550, 147510, 194445, 216050, 237655, 245850, 285186, 324075, 368775, 388890, 427779, 475310, 648150, 712965, 737550, 855558, 972225, 1188275, 1425930, 1944450, 2138895, 2376550, 3564825, 4277790, 7129650, 10694475, 21388950]

約数ペア:

[(1, 21388950), (2, 10694475), (3, 7129650), (5, 4277790), (6, 3564825), (9, 2376550), (10, 2138895), (11, 1944450), (15, 1425930), (18, 1188275), (22, 972225), (25, 855558), (29, 737550), (30, 712965), (33, 648150), (45, 475310), (50, 427779), (55, 388890), (58, 368775), (66, 324075), (75, 285186), (87, 245850), (90, 237655), (99, 216050), (110, 194445), (145, 147510), (149, 143550), (150, 142593), (165, 129630), (174, 122925), (198, 108025), (225, 95062), (261, 81950), (275, 77778), (290, 73755), (298, 71775), (319, 67050), (330, 64815), (435, 49170), (447, 47850), (450, 47531), (495, 43210), (522, 40975), (550, 38889), (638, 33525), (725, 29502), (745, 28710), (825, 25926), (870, 24585), (894, 23925), (957, 22350), (990, 21605), (1305, 16390), (1341, 15950), (1450, 14751), (1490, 14355), (1595, 13410), (1639, 13050), (1650, 12963), (1914, 11175), (2175, 9834), (2235, 9570), (2475, 8642), (2610, 8195), (2682, 7975), (2871, 7450), (3190, 6705), (3278, 6525), (3725, 5742), (4321, 4950), (4350, 4917), (4470, 4785)]