21323172

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2579}}^1$

素因数の和:2652

約数の個数: 48

約数和(自身を含む): 54613440

約数和(自身を除く): 33290268

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 53, 78, 106, 156, 159, 212, 318, 636, 689, 1378, 2067, 2579, 2756, 4134, 5158, 7737, 8268, 10316, 15474, 30948, 33527, 67054, 100581, 134108, 136687, 201162, 273374, 402324, 410061, 546748, 820122, 1640244, 1776931, 3553862, 5330793, 7107724, 10661586, 21323172]

約数ペア:

[(1, 21323172), (2, 10661586), (3, 7107724), (4, 5330793), (6, 3553862), (12, 1776931), (13, 1640244), (26, 820122), (39, 546748), (52, 410061), (53, 402324), (78, 273374), (106, 201162), (156, 136687), (159, 134108), (212, 100581), (318, 67054), (636, 33527), (689, 30948), (1378, 15474), (2067, 10316), (2579, 8268), (2756, 7737), (4134, 5158)]