21175284

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{911}}^1$

素因数の和:1080

約数の個数: 48

約数和(自身を含む): 53625600

約数和(自身を除く): 32450316

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 149, 156, 298, 447, 596, 894, 911, 1788, 1822, 1937, 2733, 3644, 3874, 5466, 5811, 7748, 10932, 11622, 11843, 23244, 23686, 35529, 47372, 71058, 135739, 142116, 271478, 407217, 542956, 814434, 1628868, 1764607, 3529214, 5293821, 7058428, 10587642, 21175284]

約数ペア:

[(1, 21175284), (2, 10587642), (3, 7058428), (4, 5293821), (6, 3529214), (12, 1764607), (13, 1628868), (26, 814434), (39, 542956), (52, 407217), (78, 271478), (149, 142116), (156, 135739), (298, 71058), (447, 47372), (596, 35529), (894, 23686), (911, 23244), (1788, 11843), (1822, 11622), (1937, 10932), (2733, 7748), (3644, 5811), (3874, 5466)]