21121428

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{40933}}^1$

素因数の和:40983

約数の個数: 24

約数和(自身を含む): 50430688

約数和(自身を除く): 29309260

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 40933, 81866, 122799, 163732, 245598, 491196, 1760119, 3520238, 5280357, 7040476, 10560714, 21121428]

約数ペア:

[(1, 21121428), (2, 10560714), (3, 7040476), (4, 5280357), (6, 3520238), (12, 1760119), (43, 491196), (86, 245598), (129, 163732), (172, 122799), (258, 81866), (516, 40933)]