21298768

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{14957}}^1$

素因数の和:15054

約数の個数: 20

約数和(自身を含む): 41732820

約数和(自身を除く): 20434052

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 14957, 29914, 59828, 119656, 239312, 1331173, 2662346, 5324692, 10649384, 21298768]

約数ペア:

[(1, 21298768), (2, 10649384), (4, 5324692), (8, 2662346), (16, 1331173), (89, 239312), (178, 119656), (356, 59828), (712, 29914), (1424, 14957)]