21350961

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{661}}^1$

素因数の和:801

約数の個数: 24

約数和(自身を含む): 32048744

約数和(自身を除く): 10697783

約数列:

[1, 3, 9, 37, 97, 111, 291, 333, 661, 873, 1983, 3589, 5949, 10767, 24457, 32301, 64117, 73371, 192351, 220113, 577053, 2372329, 7116987, 21350961]

約数ペア:

[(1, 21350961), (3, 7116987), (9, 2372329), (37, 577053), (97, 220113), (111, 192351), (291, 73371), (333, 64117), (661, 32301), (873, 24457), (1983, 10767), (3589, 5949)]