21529404

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{257}}^1$

素因数の和:459

約数の個数: 72

約数和(自身を含む): 59164560

約数和(自身を除く): 37635156

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 179, 234, 257, 358, 468, 514, 537, 716, 771, 1028, 1074, 1542, 1611, 2148, 2313, 2327, 3084, 3222, 3341, 4626, 4654, 6444, 6682, 6981, 9252, 9308, 10023, 13364, 13962, 20046, 20943, 27924, 30069, 40092, 41886, 46003, 60138, 83772, 92006, 120276, 138009, 184012, 276018, 414027, 552036, 598039, 828054, 1196078, 1656108, 1794117, 2392156, 3588234, 5382351, 7176468, 10764702, 21529404]

約数ペア:

[(1, 21529404), (2, 10764702), (3, 7176468), (4, 5382351), (6, 3588234), (9, 2392156), (12, 1794117), (13, 1656108), (18, 1196078), (26, 828054), (36, 598039), (39, 552036), (52, 414027), (78, 276018), (117, 184012), (156, 138009), (179, 120276), (234, 92006), (257, 83772), (358, 60138), (468, 46003), (514, 41886), (537, 40092), (716, 30069), (771, 27924), (1028, 20943), (1074, 20046), (1542, 13962), (1611, 13364), (2148, 10023), (2313, 9308), (2327, 9252), (3084, 6981), (3222, 6682), (3341, 6444), (4626, 4654)]