19890453

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{241}}^1$

素因数の和:357

約数の個数: 32

約数和(自身を含む): 30248064

約数和(自身を除く): 10357611

約数列:

[1, 3, 11, 33, 41, 61, 123, 183, 241, 451, 671, 723, 1353, 2013, 2501, 2651, 7503, 7953, 9881, 14701, 27511, 29643, 44103, 82533, 108691, 161711, 326073, 485133, 602741, 1808223, 6630151, 19890453]

約数ペア:

[(1, 19890453), (3, 6630151), (11, 1808223), (33, 602741), (41, 485133), (61, 326073), (123, 161711), (183, 108691), (241, 82533), (451, 44103), (671, 29643), (723, 27511), (1353, 14701), (2013, 9881), (2501, 7953), (2651, 7503)]