20218121284

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{251}}^1\times {\mathrm{40847}}^1$

素因数の和:41148

約数の個数: 48

約数和(自身を含む): 38910170880

約数和(自身を除く): 18692049596

約数列:

[1, 2, 4, 17, 29, 34, 58, 68, 116, 251, 493, 502, 986, 1004, 1972, 4267, 7279, 8534, 14558, 17068, 29116, 40847, 81694, 123743, 163388, 247486, 494972, 694399, 1184563, 1388798, 2369126, 2777596, 4738252, 10252597, 20137571, 20505194, 40275142, 41010388, 80550284, 174294149, 297325313, 348588298, 594650626, 697176596, 1189301252, 5054530321, 10109060642, 20218121284]

約数ペア:

[(1, 20218121284), (2, 10109060642), (4, 5054530321), (17, 1189301252), (29, 697176596), (34, 594650626), (58, 348588298), (68, 297325313), (116, 174294149), (251, 80550284), (493, 41010388), (502, 40275142), (986, 20505194), (1004, 20137571), (1972, 10252597), (4267, 4738252), (7279, 2777596), (8534, 2369126), (14558, 1388798), (17068, 1184563), (29116, 694399), (40847, 494972), (81694, 247486), (123743, 163388)]