21489567

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{1231}}^1$

素因数の和:1291

約数の個数: 24

約数和(自身を含む): 32702208

約数和(自身を除く): 11212641

約数列:

[1, 3, 11, 23, 33, 69, 253, 529, 759, 1231, 1587, 3693, 5819, 13541, 17457, 28313, 40623, 84939, 311443, 651199, 934329, 1953597, 7163189, 21489567]

約数ペア:

[(1, 21489567), (3, 7163189), (11, 1953597), (23, 934329), (33, 651199), (69, 311443), (253, 84939), (529, 40623), (759, 28313), (1231, 17457), (1587, 13541), (3693, 5819)]