21870772

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4177}}^1$

素因数の和:4216

約数の個数: 48

約数和(自身を含む): 50537088

約数和(自身を除く): 28666316

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 34, 44, 68, 77, 119, 154, 187, 238, 308, 374, 476, 748, 1309, 2618, 4177, 5236, 8354, 16708, 29239, 45947, 58478, 71009, 91894, 116956, 142018, 183788, 284036, 321629, 497063, 643258, 781099, 994126, 1286516, 1562198, 1988252, 3124396, 5467693, 10935386, 21870772]

約数ペア:

[(1, 21870772), (2, 10935386), (4, 5467693), (7, 3124396), (11, 1988252), (14, 1562198), (17, 1286516), (22, 994126), (28, 781099), (34, 643258), (44, 497063), (68, 321629), (77, 284036), (119, 183788), (154, 142018), (187, 116956), (238, 91894), (308, 71009), (374, 58478), (476, 45947), (748, 29239), (1309, 16708), (2618, 8354), (4177, 5236)]