17862988

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 39414816

約数和(自身を除く): 21551828

約数列:

[1, 2, 4, 11, 13, 17, 22, 26, 34, 44, 52, 68, 121, 143, 167, 187, 221, 242, 286, 334, 374, 442, 484, 572, 668, 748, 884, 1573, 1837, 2057, 2171, 2431, 2839, 3146, 3674, 4114, 4342, 4862, 5678, 6292, 7348, 8228, 8684, 9724, 11356, 20207, 23881, 26741, 31229, 36907, 40414, 47762, 53482, 62458, 73814, 80828, 95524, 106964, 124916, 147628, 262691, 343519, 405977, 525382, 687038, 811954, 1050764, 1374076, 1623908, 4465747, 8931494, 17862988]

約数ペア:

[(1, 17862988), (2, 8931494), (4, 4465747), (11, 1623908), (13, 1374076), (17, 1050764), (22, 811954), (26, 687038), (34, 525382), (44, 405977), (52, 343519), (68, 262691), (121, 147628), (143, 124916), (167, 106964), (187, 95524), (221, 80828), (242, 73814), (286, 62458), (334, 53482), (374, 47762), (442, 40414), (484, 36907), (572, 31229), (668, 26741), (748, 23881), (884, 20207), (1573, 11356), (1837, 9724), (2057, 8684), (2171, 8228), (2431, 7348), (2839, 6292), (3146, 5678), (3674, 4862), (4114, 4342)]