21599456

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{163}}^1$

素因数の和:315

約数の個数: 48

約数和(自身を含む): 44262288

約数和(自身を除く): 22662832

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 101, 163, 164, 202, 326, 328, 404, 652, 656, 808, 1304, 1312, 1616, 2608, 3232, 4141, 5216, 6683, 8282, 13366, 16463, 16564, 26732, 32926, 33128, 53464, 65852, 66256, 106928, 131704, 132512, 213856, 263408, 526816, 674983, 1349966, 2699932, 5399864, 10799728, 21599456]

約数ペア:

[(1, 21599456), (2, 10799728), (4, 5399864), (8, 2699932), (16, 1349966), (32, 674983), (41, 526816), (82, 263408), (101, 213856), (163, 132512), (164, 131704), (202, 106928), (326, 66256), (328, 65852), (404, 53464), (652, 33128), (656, 32926), (808, 26732), (1304, 16564), (1312, 16463), (1616, 13366), (2608, 8282), (3232, 6683), (4141, 5216)]