31157203

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{241}}^1$

素因数の和:355

約数の個数: 32

約数和(自身を含む): 41260032

約数和(自身を除く): 10102829

約数列:

[1, 7, 11, 23, 73, 77, 161, 241, 253, 511, 803, 1679, 1687, 1771, 2651, 5543, 5621, 11753, 17593, 18469, 18557, 38801, 60973, 123151, 129283, 193523, 404639, 426811, 1354661, 2832473, 4451029, 31157203]

約数ペア:

[(1, 31157203), (7, 4451029), (11, 2832473), (23, 1354661), (73, 426811), (77, 404639), (161, 193523), (241, 129283), (253, 123151), (511, 60973), (803, 38801), (1679, 18557), (1687, 18469), (1771, 17593), (2651, 11753), (5543, 5621)]