18861395

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{251}}^1$

素因数の和:395

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 8717485

約数列:

[1, 5, 7, 19, 35, 95, 113, 133, 251, 565, 665, 791, 1255, 1757, 2147, 3955, 4769, 8785, 10735, 15029, 23845, 28363, 33383, 75145, 141815, 166915, 198541, 538897, 992705, 2694485, 3772279, 18861395]

約数ペア:

[(1, 18861395), (5, 3772279), (7, 2694485), (19, 992705), (35, 538897), (95, 198541), (113, 166915), (133, 141815), (251, 75145), (565, 33383), (665, 28363), (791, 23845), (1255, 15029), (1757, 10735), (2147, 8785), (3955, 4769)]