21156636

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{757}}^1$

素因数の和:918

約数の個数: 48

約数和(自身を含む): 52720416

約数和(自身を除く): 31563780

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 137, 204, 274, 411, 548, 757, 822, 1514, 1644, 2271, 2329, 3028, 4542, 4658, 6987, 9084, 9316, 12869, 13974, 25738, 27948, 38607, 51476, 77214, 103709, 154428, 207418, 311127, 414836, 622254, 1244508, 1763053, 3526106, 5289159, 7052212, 10578318, 21156636]

約数ペア:

[(1, 21156636), (2, 10578318), (3, 7052212), (4, 5289159), (6, 3526106), (12, 1763053), (17, 1244508), (34, 622254), (51, 414836), (68, 311127), (102, 207418), (137, 154428), (204, 103709), (274, 77214), (411, 51476), (548, 38607), (757, 27948), (822, 25738), (1514, 13974), (1644, 12869), (2271, 9316), (2329, 9084), (3028, 6987), (4542, 4658)]