20764568

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1129}}^1$

素因数の和:1176

約数の個数: 48

約数和(自身を含む): 45087000

約数和(自身を除く): 24322432

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 121, 152, 209, 242, 418, 484, 836, 968, 1129, 1672, 2258, 2299, 4516, 4598, 9032, 9196, 12419, 18392, 21451, 24838, 42902, 49676, 85804, 99352, 136609, 171608, 235961, 273218, 471922, 546436, 943844, 1092872, 1887688, 2595571, 5191142, 10382284, 20764568]

約数ペア:

[(1, 20764568), (2, 10382284), (4, 5191142), (8, 2595571), (11, 1887688), (19, 1092872), (22, 943844), (38, 546436), (44, 471922), (76, 273218), (88, 235961), (121, 171608), (152, 136609), (209, 99352), (242, 85804), (418, 49676), (484, 42902), (836, 24838), (968, 21451), (1129, 18392), (1672, 12419), (2258, 9196), (2299, 9032), (4516, 4598)]