21675542

素因数分解:

$2^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{1663}}^1$

素因数の和:1705

約数の個数: 32

約数和(自身を含む): 39936000

約数和(自身を除く): 18260458

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 266, 343, 686, 931, 1663, 1862, 3326, 6517, 11641, 13034, 23282, 31597, 63194, 81487, 162974, 221179, 442358, 570409, 1140818, 1548253, 3096506, 10837771, 21675542]

約数ペア:

[(1, 21675542), (2, 10837771), (7, 3096506), (14, 1548253), (19, 1140818), (38, 570409), (49, 442358), (98, 221179), (133, 162974), (266, 81487), (343, 63194), (686, 31597), (931, 23282), (1663, 13034), (1862, 11641), (3326, 6517)]