21853971

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{563}}^1$

素因数の和:815

約数の個数: 24

約数和(自身を含む): 33433920

約数和(自身を除く): 11579949

約数列:

[1, 3, 9, 19, 57, 171, 227, 563, 681, 1689, 2043, 4313, 5067, 10697, 12939, 32091, 38817, 96273, 127801, 383403, 1150209, 2428219, 7284657, 21853971]

約数ペア:

[(1, 21853971), (3, 7284657), (9, 2428219), (19, 1150209), (57, 383403), (171, 127801), (227, 96273), (563, 38817), (681, 32091), (1689, 12939), (2043, 10697), (4313, 5067)]