21878199

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{5693}}^1$

素因数の和:5767

約数の個数: 24

約数和(自身を含む): 36714912

約数和(自身を除く): 14836713

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 5693, 17079, 39851, 51237, 119553, 347273, 358659, 1041819, 2430911, 3125457, 7292733, 21878199]

約数ペア:

[(1, 21878199), (3, 7292733), (7, 3125457), (9, 2430911), (21, 1041819), (61, 358659), (63, 347273), (183, 119553), (427, 51237), (549, 39851), (1281, 17079), (3843, 5693)]