19914416

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{167}}^1\times {\mathrm{257}}^1$

素因数の和:461

約数の個数: 40

約数和(自身を含む): 40309920

約数和(自身を除く): 20395504

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 167, 232, 257, 334, 464, 514, 668, 1028, 1336, 2056, 2672, 4112, 4843, 7453, 9686, 14906, 19372, 29812, 38744, 42919, 59624, 77488, 85838, 119248, 171676, 343352, 686704, 1244651, 2489302, 4978604, 9957208, 19914416]

約数ペア:

[(1, 19914416), (2, 9957208), (4, 4978604), (8, 2489302), (16, 1244651), (29, 686704), (58, 343352), (116, 171676), (167, 119248), (232, 85838), (257, 77488), (334, 59624), (464, 42919), (514, 38744), (668, 29812), (1028, 19372), (1336, 14906), (2056, 9686), (2672, 7453), (4112, 4843)]