31921305

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{523}}^1$

素因数の和:857

約数の個数: 32

約数和(自身を含む): 55284096

約数和(自身を除く): 23362791

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 313, 523, 939, 1565, 1569, 2615, 4069, 4695, 6799, 7845, 12207, 20345, 20397, 33995, 61035, 101985, 163699, 491097, 818495, 2128087, 2455485, 6384261, 10640435, 31921305]

約数ペア:

[(1, 31921305), (3, 10640435), (5, 6384261), (13, 2455485), (15, 2128087), (39, 818495), (65, 491097), (195, 163699), (313, 101985), (523, 61035), (939, 33995), (1565, 20397), (1569, 20345), (2615, 12207), (4069, 7845), (4695, 6799)]