21214746

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{67}}^1\times {\mathrm{359}}^1$

素因数の和:448

約数の個数: 72

約数和(自身を含む): 54419040

約数和(自身を除く): 33204294

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 67, 98, 126, 134, 147, 201, 294, 359, 402, 441, 469, 603, 718, 882, 938, 1077, 1206, 1407, 2154, 2513, 2814, 3231, 3283, 4221, 5026, 6462, 6566, 7539, 8442, 9849, 15078, 17591, 19698, 22617, 24053, 29547, 35182, 45234, 48106, 52773, 59094, 72159, 105546, 144318, 158319, 168371, 216477, 316638, 336742, 432954, 505113, 1010226, 1178597, 1515339, 2357194, 3030678, 3535791, 7071582, 10607373, 21214746]

約数ペア:

[(1, 21214746), (2, 10607373), (3, 7071582), (6, 3535791), (7, 3030678), (9, 2357194), (14, 1515339), (18, 1178597), (21, 1010226), (42, 505113), (49, 432954), (63, 336742), (67, 316638), (98, 216477), (126, 168371), (134, 158319), (147, 144318), (201, 105546), (294, 72159), (359, 59094), (402, 52773), (441, 48106), (469, 45234), (603, 35182), (718, 29547), (882, 24053), (938, 22617), (1077, 19698), (1206, 17591), (1407, 15078), (2154, 9849), (2513, 8442), (2814, 7539), (3231, 6566), (3283, 6462), (4221, 5026)]