31686645

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{769}}^1$

素因数の和:885

約数の個数: 32

約数和(自身を含む): 52778880

約数和(自身を除く): 21092235

約数列:

[1, 3, 5, 15, 41, 67, 123, 201, 205, 335, 615, 769, 1005, 2307, 2747, 3845, 8241, 11535, 13735, 31529, 41205, 51523, 94587, 154569, 157645, 257615, 472935, 772845, 2112443, 6337329, 10562215, 31686645]

約数ペア:

[(1, 31686645), (3, 10562215), (5, 6337329), (15, 2112443), (41, 772845), (67, 472935), (123, 257615), (201, 157645), (205, 154569), (335, 94587), (615, 51523), (769, 41205), (1005, 31529), (2307, 13735), (2747, 11535), (3845, 8241)]