21781159016

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{1907}}^1\times {\mathrm{83983}}^1$

素因数の和:85913

約数の個数: 32

約数和(自身を含む): 43265197440

約数和(自身を除く): 21484038424

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 1907, 3814, 7628, 15256, 32419, 64838, 83983, 129676, 167966, 259352, 335932, 671864, 1427711, 2855422, 5710844, 11421688, 160155581, 320311162, 640622324, 1281244648, 2722644877, 5445289754, 10890579508, 21781159016]

約数ペア:

[(1, 21781159016), (2, 10890579508), (4, 5445289754), (8, 2722644877), (17, 1281244648), (34, 640622324), (68, 320311162), (136, 160155581), (1907, 11421688), (3814, 5710844), (7628, 2855422), (15256, 1427711), (32419, 671864), (64838, 335932), (83983, 259352), (129676, 167966)]