19890748

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{4007}}^1$

素因数の和:4101

約数の個数: 24

約数和(自身を含む): 37370592

約数和(自身を除く): 17479844

約数列:

[1, 2, 4, 17, 34, 68, 73, 146, 292, 1241, 2482, 4007, 4964, 8014, 16028, 68119, 136238, 272476, 292511, 585022, 1170044, 4972687, 9945374, 19890748]

約数ペア:

[(1, 19890748), (2, 9945374), (4, 4972687), (17, 1170044), (34, 585022), (68, 292511), (73, 272476), (146, 136238), (292, 68119), (1241, 16028), (2482, 8014), (4007, 4964)]