21947548

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{179}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 45964800

約数和(自身を除く): 24017252

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 151, 179, 203, 302, 358, 406, 604, 716, 812, 1057, 1253, 2114, 2506, 4228, 4379, 5012, 5191, 8758, 10382, 17516, 20764, 27029, 30653, 36337, 54058, 61306, 72674, 108116, 122612, 145348, 189203, 378406, 756812, 783841, 1567682, 3135364, 5486887, 10973774, 21947548]

約数ペア:

[(1, 21947548), (2, 10973774), (4, 5486887), (7, 3135364), (14, 1567682), (28, 783841), (29, 756812), (58, 378406), (116, 189203), (151, 145348), (179, 122612), (203, 108116), (302, 72674), (358, 61306), (406, 54058), (604, 36337), (716, 30653), (812, 27029), (1057, 20764), (1253, 17516), (2114, 10382), (2506, 8758), (4228, 5191), (4379, 5012)]