20387522

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^2\times {\mathrm{31}}^1$

素因数の和:131

約数の個数: 48

約数和(自身を含む): 36122112

約数和(自身を除く): 15734590

約数列:

[1, 2, 17, 23, 29, 31, 34, 46, 58, 62, 391, 493, 527, 667, 713, 782, 841, 899, 986, 1054, 1334, 1426, 1682, 1798, 11339, 12121, 14297, 15283, 19343, 20677, 22678, 24242, 26071, 28594, 30566, 38686, 41354, 52142, 328831, 351509, 443207, 599633, 657662, 703018, 886414, 1199266, 10193761, 20387522]

約数ペア:

[(1, 20387522), (2, 10193761), (17, 1199266), (23, 886414), (29, 703018), (31, 657662), (34, 599633), (46, 443207), (58, 351509), (62, 328831), (391, 52142), (493, 41354), (527, 38686), (667, 30566), (713, 28594), (782, 26071), (841, 24242), (899, 22678), (986, 20677), (1054, 19343), (1334, 15283), (1426, 14297), (1682, 12121), (1798, 11339)]