97721991

素因数分解:

$3^3\times {\mathrm{173}}^1\times {\mathrm{20921}}^1$

素因数の和:21103

約数の個数: 16

約数和(自身を含む): 145617120

約数和(自身を除く): 47895129

約数列:

[1, 3, 9, 27, 173, 519, 1557, 4671, 20921, 62763, 188289, 564867, 3619333, 10857999, 32573997, 97721991]

約数ペア:

[(1, 97721991), (3, 32573997), (9, 10857999), (27, 3619333), (173, 564867), (519, 188289), (1557, 62763), (4671, 20921)]