81193119

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{449}}^1$

素因数の和:647

約数の個数: 32

約数和(自身を含む): 126720000

約数和(自身を除く): 45526881

約数列:

[1, 3, 7, 21, 79, 109, 237, 327, 449, 553, 763, 1347, 1659, 2289, 3143, 8611, 9429, 25833, 35471, 48941, 60277, 106413, 146823, 180831, 248297, 342587, 744891, 1027761, 3866339, 11599017, 27064373, 81193119]

約数ペア:

[(1, 81193119), (3, 27064373), (7, 11599017), (21, 3866339), (79, 1027761), (109, 744891), (237, 342587), (327, 248297), (449, 180831), (553, 146823), (763, 106413), (1347, 60277), (1659, 48941), (2289, 35471), (3143, 25833), (8611, 9429)]