28245399

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{659}}^1$

素因数の和:839

約数の個数: 32

約数和(自身を含む): 46717440

約数和(自身を除く): 18472041

約数列:

[1, 3, 7, 13, 21, 39, 91, 157, 273, 471, 659, 1099, 1977, 2041, 3297, 4613, 6123, 8567, 13839, 14287, 25701, 42861, 59969, 103463, 179907, 310389, 724241, 1345019, 2172723, 4035057, 9415133, 28245399]

約数ペア:

[(1, 28245399), (3, 9415133), (7, 4035057), (13, 2172723), (21, 1345019), (39, 724241), (91, 310389), (157, 179907), (273, 103463), (471, 59969), (659, 42861), (1099, 25701), (1977, 14287), (2041, 13839), (3297, 8567), (4613, 6123)]