21193146

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^2$

素因数の和:156

約数の個数: 72

約数和(自身を含む): 51757524

約数和(自身を除く): 30564378

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 41, 47, 78, 82, 94, 117, 123, 141, 234, 246, 282, 369, 423, 533, 611, 738, 846, 1066, 1222, 1599, 1833, 1927, 2209, 3198, 3666, 3854, 4418, 4797, 5499, 5781, 6627, 9594, 10998, 11562, 13254, 17343, 19881, 25051, 28717, 34686, 39762, 50102, 57434, 75153, 86151, 90569, 150306, 172302, 181138, 225459, 258453, 271707, 450918, 516906, 543414, 815121, 1177397, 1630242, 2354794, 3532191, 7064382, 10596573, 21193146]

約数ペア:

[(1, 21193146), (2, 10596573), (3, 7064382), (6, 3532191), (9, 2354794), (13, 1630242), (18, 1177397), (26, 815121), (39, 543414), (41, 516906), (47, 450918), (78, 271707), (82, 258453), (94, 225459), (117, 181138), (123, 172302), (141, 150306), (234, 90569), (246, 86151), (282, 75153), (369, 57434), (423, 50102), (533, 39762), (611, 34686), (738, 28717), (846, 25051), (1066, 19881), (1222, 17343), (1599, 13254), (1833, 11562), (1927, 10998), (2209, 9594), (3198, 6627), (3666, 5781), (3854, 5499), (4418, 4797)]