18899764

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{151}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 37537920

約数和(自身を除く): 18638156

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 83, 116, 151, 166, 302, 332, 377, 604, 754, 1079, 1508, 1963, 2158, 2407, 3926, 4316, 4379, 4814, 7852, 8758, 9628, 12533, 17516, 25066, 31291, 50132, 56927, 62582, 113854, 125164, 162929, 227708, 325858, 363457, 651716, 726914, 1453828, 4724941, 9449882, 18899764]

約数ペア:

[(1, 18899764), (2, 9449882), (4, 4724941), (13, 1453828), (26, 726914), (29, 651716), (52, 363457), (58, 325858), (83, 227708), (116, 162929), (151, 125164), (166, 113854), (302, 62582), (332, 56927), (377, 50132), (604, 31291), (754, 25066), (1079, 17516), (1508, 12533), (1963, 9628), (2158, 8758), (2407, 7852), (3926, 4814), (4316, 4379)]