21691878

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{8971}}^1$

素因数の和:9020

約数の個数: 32

約数和(自身を含む): 48233472

約数和(自身を除く): 26541594

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 403, 806, 1209, 2418, 8971, 17942, 26913, 53826, 116623, 233246, 278101, 349869, 556202, 699738, 834303, 1668606, 3615313, 7230626, 10845939, 21691878]

約数ペア:

[(1, 21691878), (2, 10845939), (3, 7230626), (6, 3615313), (13, 1668606), (26, 834303), (31, 699738), (39, 556202), (62, 349869), (78, 278101), (93, 233246), (186, 116623), (403, 53826), (806, 26913), (1209, 17942), (2418, 8971)]