20853220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61333}}^1$

素因数の和:61359

約数の個数: 24

約数和(自身を含む): 46368504

約数和(自身を除く): 25515284

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 61333, 122666, 245332, 306665, 613330, 1042661, 1226660, 2085322, 4170644, 5213305, 10426610, 20853220]

約数ペア:

[(1, 20853220), (2, 10426610), (4, 5213305), (5, 4170644), (10, 2085322), (17, 1226660), (20, 1042661), (34, 613330), (68, 306665), (85, 245332), (170, 122666), (340, 61333)]