28440237

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{79}}^2$

素因数の和:206

約数の個数: 36

約数和(自身を含む): 46118016

約数和(自身を除く): 17677779

約数列:

[1, 3, 7, 21, 31, 49, 79, 93, 147, 217, 237, 553, 651, 1519, 1659, 2449, 3871, 4557, 6241, 7347, 11613, 17143, 18723, 43687, 51429, 120001, 131061, 193471, 305809, 360003, 580413, 917427, 1354297, 4062891, 9480079, 28440237]

約数ペア:

[(1, 28440237), (3, 9480079), (7, 4062891), (21, 1354297), (31, 917427), (49, 580413), (79, 360003), (93, 305809), (147, 193471), (217, 131061), (237, 120001), (553, 51429), (651, 43687), (1519, 18723), (1659, 17143), (2449, 11613), (3871, 7347), (4557, 6241)]