18528455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{151}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 25740288

約数和(自身を除く): 7211833

約数列:

[1, 5, 11, 23, 55, 97, 115, 151, 253, 485, 755, 1067, 1265, 1661, 2231, 3473, 5335, 8305, 11155, 14647, 17365, 24541, 38203, 73235, 122705, 161117, 191015, 336881, 805585, 1684405, 3705691, 18528455]

約数ペア:

[(1, 18528455), (5, 3705691), (11, 1684405), (23, 805585), (55, 336881), (97, 191015), (115, 161117), (151, 122705), (253, 73235), (485, 38203), (755, 24541), (1067, 17365), (1265, 14647), (1661, 11155), (2231, 8305), (3473, 5335)]