20378646

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{233}}^1$

素因数の和:397

約数の個数: 48

約数和(自身を含む): 45776016

約数和(自身を除く): 25397370

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 113, 129, 226, 233, 258, 339, 387, 466, 678, 699, 774, 1017, 1398, 2034, 2097, 4194, 4859, 9718, 10019, 14577, 20038, 26329, 29154, 30057, 43731, 52658, 60114, 78987, 87462, 90171, 157974, 180342, 236961, 473922, 1132147, 2264294, 3396441, 6792882, 10189323, 20378646]

約数ペア:

[(1, 20378646), (2, 10189323), (3, 6792882), (6, 3396441), (9, 2264294), (18, 1132147), (43, 473922), (86, 236961), (113, 180342), (129, 157974), (226, 90171), (233, 87462), (258, 78987), (339, 60114), (387, 52658), (466, 43731), (678, 30057), (699, 29154), (774, 26329), (1017, 20038), (1398, 14577), (2034, 10019), (2097, 9718), (4194, 4859)]