21994492

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 43182720

約数和(自身を除く): 21188228

約数列:

[1, 2, 4, 13, 26, 52, 59, 67, 107, 118, 134, 214, 236, 268, 428, 767, 871, 1391, 1534, 1742, 2782, 3068, 3484, 3953, 5564, 6313, 7169, 7906, 12626, 14338, 15812, 25252, 28676, 51389, 82069, 93197, 102778, 164138, 186394, 205556, 328276, 372788, 422971, 845942, 1691884, 5498623, 10997246, 21994492]

約数ペア:

[(1, 21994492), (2, 10997246), (4, 5498623), (13, 1691884), (26, 845942), (52, 422971), (59, 372788), (67, 328276), (107, 205556), (118, 186394), (134, 164138), (214, 102778), (236, 93197), (268, 82069), (428, 51389), (767, 28676), (871, 25252), (1391, 15812), (1534, 14338), (1742, 12626), (2782, 7906), (3068, 7169), (3484, 6313), (3953, 5564)]