19919718

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12161}}^1$

素因数の和:12189

約数の個数: 48

約数和(自身を含む): 53123616

約数和(自身を除く): 33203898

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 91, 117, 126, 182, 234, 273, 546, 819, 1638, 12161, 24322, 36483, 72966, 85127, 109449, 158093, 170254, 218898, 255381, 316186, 474279, 510762, 766143, 948558, 1106651, 1422837, 1532286, 2213302, 2845674, 3319953, 6639906, 9959859, 19919718]

約数ペア:

[(1, 19919718), (2, 9959859), (3, 6639906), (6, 3319953), (7, 2845674), (9, 2213302), (13, 1532286), (14, 1422837), (18, 1106651), (21, 948558), (26, 766143), (39, 510762), (42, 474279), (63, 316186), (78, 255381), (91, 218898), (117, 170254), (126, 158093), (182, 109449), (234, 85127), (273, 72966), (546, 36483), (819, 24322), (1638, 12161)]