21297430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1627}}^1$

素因数の和:1669

約数の個数: 64

約数和(自身を含む): 50637312

約数和(自身を除く): 29339882

約数列:

[1, 2, 5, 7, 10, 11, 14, 17, 22, 34, 35, 55, 70, 77, 85, 110, 119, 154, 170, 187, 238, 374, 385, 595, 770, 935, 1190, 1309, 1627, 1870, 2618, 3254, 6545, 8135, 11389, 13090, 16270, 17897, 22778, 27659, 35794, 55318, 56945, 89485, 113890, 125279, 138295, 178970, 193613, 250558, 276590, 304249, 387226, 608498, 626395, 968065, 1252790, 1521245, 1936130, 2129743, 3042490, 4259486, 10648715, 21297430]

約数ペア:

[(1, 21297430), (2, 10648715), (5, 4259486), (7, 3042490), (10, 2129743), (11, 1936130), (14, 1521245), (17, 1252790), (22, 968065), (34, 626395), (35, 608498), (55, 387226), (70, 304249), (77, 276590), (85, 250558), (110, 193613), (119, 178970), (154, 138295), (170, 125279), (187, 113890), (238, 89485), (374, 56945), (385, 55318), (595, 35794), (770, 27659), (935, 22778), (1190, 17897), (1309, 16270), (1627, 13090), (1870, 11389), (2618, 8135), (3254, 6545)]