21604786

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{283}}^1$

素因数の和:359

約数の個数: 48

約数和(自身を含む): 40793760

約数和(自身を除く): 19188974

約数列:

[1, 2, 7, 14, 19, 38, 41, 49, 82, 98, 133, 266, 283, 287, 566, 574, 779, 931, 1558, 1862, 1981, 2009, 3962, 4018, 5377, 5453, 10754, 10906, 11603, 13867, 23206, 27734, 37639, 38171, 75278, 76342, 81221, 162442, 220457, 263473, 440914, 526946, 568547, 1137094, 1543199, 3086398, 10802393, 21604786]

約数ペア:

[(1, 21604786), (2, 10802393), (7, 3086398), (14, 1543199), (19, 1137094), (38, 568547), (41, 526946), (49, 440914), (82, 263473), (98, 220457), (133, 162442), (266, 81221), (283, 76342), (287, 75278), (566, 38171), (574, 37639), (779, 27734), (931, 23206), (1558, 13867), (1862, 11603), (1981, 10906), (2009, 10754), (3962, 5453), (4018, 5377)]