20490134

素因数分解:

$2^1\times 7^4\times {\mathrm{17}}^1\times {\mathrm{251}}^1$

素因数の和:298

約数の個数: 40

約数和(自身を含む): 38116008

約数和(自身を除く): 17625874

約数列:

[1, 2, 7, 14, 17, 34, 49, 98, 119, 238, 251, 343, 502, 686, 833, 1666, 1757, 2401, 3514, 4267, 4802, 5831, 8534, 11662, 12299, 24598, 29869, 40817, 59738, 81634, 86093, 172186, 209083, 418166, 602651, 1205302, 1463581, 2927162, 10245067, 20490134]

約数ペア:

[(1, 20490134), (2, 10245067), (7, 2927162), (14, 1463581), (17, 1205302), (34, 602651), (49, 418166), (98, 209083), (119, 172186), (238, 86093), (251, 81634), (343, 59738), (502, 40817), (686, 29869), (833, 24598), (1666, 12299), (1757, 11662), (2401, 8534), (3514, 5831), (4267, 4802)]