21798868

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59887}}^1$

素因数の和:59911

約数の個数: 24

約数和(自身を含む): 46952192

約数和(自身を除く): 25153324

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 59887, 119774, 239548, 419209, 778531, 838418, 1557062, 1676836, 3114124, 5449717, 10899434, 21798868]

約数ペア:

[(1, 21798868), (2, 10899434), (4, 5449717), (7, 3114124), (13, 1676836), (14, 1557062), (26, 838418), (28, 778531), (52, 419209), (91, 239548), (182, 119774), (364, 59887)]