20538756

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{547}}^1$

素因数の和:713

約数の個数: 72

約数和(自身を含む): 59841600

約数和(自身を除く): 39302844

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 149, 252, 298, 447, 547, 596, 894, 1043, 1094, 1341, 1641, 1788, 2086, 2188, 2682, 3129, 3282, 3829, 4172, 4923, 5364, 6258, 6564, 7658, 9387, 9846, 11487, 12516, 15316, 18774, 19692, 22974, 34461, 37548, 45948, 68922, 81503, 137844, 163006, 244509, 326012, 489018, 570521, 733527, 978036, 1141042, 1467054, 1711563, 2282084, 2934108, 3423126, 5134689, 6846252, 10269378, 20538756]

約数ペア:

[(1, 20538756), (2, 10269378), (3, 6846252), (4, 5134689), (6, 3423126), (7, 2934108), (9, 2282084), (12, 1711563), (14, 1467054), (18, 1141042), (21, 978036), (28, 733527), (36, 570521), (42, 489018), (63, 326012), (84, 244509), (126, 163006), (149, 137844), (252, 81503), (298, 68922), (447, 45948), (547, 37548), (596, 34461), (894, 22974), (1043, 19692), (1094, 18774), (1341, 15316), (1641, 12516), (1788, 11487), (2086, 9846), (2188, 9387), (2682, 7658), (3129, 6564), (3282, 6258), (3829, 5364), (4172, 4923)]