13857745

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:273

約数の個数: 32

約数和(自身を含む): 19440000

約数和(自身を除く): 5582255

約数列:

[1, 5, 11, 19, 55, 89, 95, 149, 209, 445, 745, 979, 1045, 1639, 1691, 2831, 4895, 8195, 8455, 13261, 14155, 18601, 31141, 66305, 93005, 145871, 155705, 251959, 729355, 1259795, 2771549, 13857745]

約数ペア:

[(1, 13857745), (5, 2771549), (11, 1259795), (19, 729355), (55, 251959), (89, 155705), (95, 145871), (149, 93005), (209, 66305), (445, 31141), (745, 18601), (979, 14155), (1045, 13261), (1639, 8455), (1691, 8195), (2831, 4895)]