21217937

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{2447}}^1$

素因数の和:2512

約数の個数: 16

約数和(自身を含む): 24675840

約数和(自身を除く): 3457903

約数列:

[1, 13, 23, 29, 299, 377, 667, 2447, 8671, 31811, 56281, 70963, 731653, 922519, 1632149, 21217937]

約数ペア:

[(1, 21217937), (13, 1632149), (23, 922519), (29, 731653), (299, 70963), (377, 56281), (667, 31811), (2447, 8671)]