19853874

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{227}}^1$

素因数の和:391

約数の個数: 48

約数和(自身を含む): 44602272

約数和(自身を除く): 24748398

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 113, 129, 226, 227, 258, 339, 387, 454, 678, 681, 774, 1017, 1362, 2034, 2043, 4086, 4859, 9718, 9761, 14577, 19522, 25651, 29154, 29283, 43731, 51302, 58566, 76953, 87462, 87849, 153906, 175698, 230859, 461718, 1102993, 2205986, 3308979, 6617958, 9926937, 19853874]

約数ペア:

[(1, 19853874), (2, 9926937), (3, 6617958), (6, 3308979), (9, 2205986), (18, 1102993), (43, 461718), (86, 230859), (113, 175698), (129, 153906), (226, 87849), (227, 87462), (258, 76953), (339, 58566), (387, 51302), (454, 43731), (678, 29283), (681, 29154), (774, 25651), (1017, 19522), (1362, 14577), (2034, 9761), (2043, 9718), (4086, 4859)]