21200316

素因数分解:

$2^2\times 3^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{167}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 50803200

約数和(自身を除く): 29602884

約数列:

[1, 2, 3, 4, 6, 12, 71, 142, 149, 167, 213, 284, 298, 334, 426, 447, 501, 596, 668, 852, 894, 1002, 1788, 2004, 10579, 11857, 21158, 23714, 24883, 31737, 35571, 42316, 47428, 49766, 63474, 71142, 74649, 99532, 126948, 142284, 149298, 298596, 1766693, 3533386, 5300079, 7066772, 10600158, 21200316]

約数ペア:

[(1, 21200316), (2, 10600158), (3, 7066772), (4, 5300079), (6, 3533386), (12, 1766693), (71, 298596), (142, 149298), (149, 142284), (167, 126948), (213, 99532), (284, 74649), (298, 71142), (334, 63474), (426, 49766), (447, 47428), (501, 42316), (596, 35571), (668, 31737), (852, 24883), (894, 23714), (1002, 21158), (1788, 11857), (2004, 10579)]