21067551

素因数分解:

$3^2\times {\mathrm{107}}^1\times {\mathrm{131}}^1\times {\mathrm{167}}^1$

素因数の和:411

約数の個数: 24

約数和(自身を含む): 31135104

約数和(自身を除く): 10067553

約数列:

[1, 3, 9, 107, 131, 167, 321, 393, 501, 963, 1179, 1503, 14017, 17869, 21877, 42051, 53607, 65631, 126153, 160821, 196893, 2340839, 7022517, 21067551]

約数ペア:

[(1, 21067551), (3, 7022517), (9, 2340839), (107, 196893), (131, 160821), (167, 126153), (321, 65631), (393, 53607), (501, 42051), (963, 21877), (1179, 17869), (1503, 14017)]