20906835

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{313}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 34575168

約数和(自身を除く): 13668333

約数列:

[1, 3, 5, 15, 61, 73, 183, 219, 305, 313, 365, 915, 939, 1095, 1565, 4453, 4695, 13359, 19093, 22265, 22849, 57279, 66795, 68547, 95465, 114245, 286395, 342735, 1393789, 4181367, 6968945, 20906835]

約数ペア:

[(1, 20906835), (3, 6968945), (5, 4181367), (15, 1393789), (61, 342735), (73, 286395), (183, 114245), (219, 95465), (305, 68547), (313, 66795), (365, 57279), (915, 22849), (939, 22265), (1095, 19093), (1565, 13359), (4453, 4695)]