21381416

素因数分解:

$2^3\times 7^1\times {\mathrm{173}}^1\times {\mathrm{2207}}^1$

素因数の和:2393

約数の個数: 32

約数和(自身を含む): 46103040

約数和(自身を除く): 24721624

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 173, 346, 692, 1211, 1384, 2207, 2422, 4414, 4844, 8828, 9688, 15449, 17656, 30898, 61796, 123592, 381811, 763622, 1527244, 2672677, 3054488, 5345354, 10690708, 21381416]

約数ペア:

[(1, 21381416), (2, 10690708), (4, 5345354), (7, 3054488), (8, 2672677), (14, 1527244), (28, 763622), (56, 381811), (173, 123592), (346, 61796), (692, 30898), (1211, 17656), (1384, 15449), (2207, 9688), (2422, 8828), (4414, 4844)]