21974812

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{3631}}^1$

素因数の和:3741

約数の個数: 24

約数和(自身を含む): 41186880

約数和(自身を除く): 19212068

約数列:

[1, 2, 4, 17, 34, 68, 89, 178, 356, 1513, 3026, 3631, 6052, 7262, 14524, 61727, 123454, 246908, 323159, 646318, 1292636, 5493703, 10987406, 21974812]

約数ペア:

[(1, 21974812), (2, 10987406), (4, 5493703), (17, 1292636), (34, 646318), (68, 323159), (89, 246908), (178, 123454), (356, 61727), (1513, 14524), (3026, 7262), (3631, 6052)]