81478881

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:378

約数の個数: 48

約数和(自身を含む): 134184960

約数和(自身を除く): 52706079

約数列:

[1, 3, 9, 11, 31, 33, 93, 99, 139, 191, 279, 341, 417, 573, 1023, 1251, 1529, 1719, 2101, 3069, 4309, 4587, 5921, 6303, 12927, 13761, 17763, 18909, 26549, 38781, 47399, 53289, 65131, 79647, 142197, 195393, 238941, 292039, 426591, 586179, 823019, 876117, 2469057, 2628351, 7407171, 9053209, 27159627, 81478881]

約数ペア:

[(1, 81478881), (3, 27159627), (9, 9053209), (11, 7407171), (31, 2628351), (33, 2469057), (93, 876117), (99, 823019), (139, 586179), (191, 426591), (279, 292039), (341, 238941), (417, 195393), (573, 142197), (1023, 79647), (1251, 65131), (1529, 53289), (1719, 47399), (2101, 38781), (3069, 26549), (4309, 18909), (4587, 17763), (5921, 13761), (6303, 12927)]