261344307

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1\times {\mathrm{1129}}^1$

素因数の和:1363

約数の個数: 32

約数和(自身を含む): 406727680

約数和(自身を除く): 145383373

約数列:

[1, 3, 7, 21, 73, 151, 219, 453, 511, 1057, 1129, 1533, 3171, 3387, 7903, 11023, 23709, 33069, 77161, 82417, 170479, 231483, 247251, 511437, 576919, 1193353, 1730757, 3580059, 12444967, 37334901, 87114769, 261344307]

約数ペア:

[(1, 261344307), (3, 87114769), (7, 37334901), (21, 12444967), (73, 3580059), (151, 1730757), (219, 1193353), (453, 576919), (511, 511437), (1057, 247251), (1129, 231483), (1533, 170479), (3171, 82417), (3387, 77161), (7903, 33069), (11023, 23709)]