21890638

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{3467}}^1$

素因数の和:3528

約数の個数: 32

約数和(自身を含む): 41948928

約数和(自身を除く): 20058290

約数列:

[1, 2, 7, 11, 14, 22, 41, 77, 82, 154, 287, 451, 574, 902, 3157, 3467, 6314, 6934, 24269, 38137, 48538, 76274, 142147, 266959, 284294, 533918, 995029, 1563617, 1990058, 3127234, 10945319, 21890638]

約数ペア:

[(1, 21890638), (2, 10945319), (7, 3127234), (11, 1990058), (14, 1563617), (22, 995029), (41, 533918), (77, 284294), (82, 266959), (154, 142147), (287, 76274), (451, 48538), (574, 38137), (902, 24269), (3157, 6934), (3467, 6314)]