21580452831

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1\times {\mathrm{72671}}^1$

素因数の和:72939

約数の個数: 32

約数和(自身を含む): 33487257600

約数和(自身を除く): 11906804769

約数列:

[1, 3, 7, 21, 79, 179, 237, 537, 553, 1253, 1659, 3759, 14141, 42423, 72671, 98987, 218013, 296961, 508697, 1526091, 5741009, 13008109, 17223027, 39024327, 40187063, 91056763, 120561189, 273170289, 1027640611, 3082921833, 7193484277, 21580452831]

約数ペア:

[(1, 21580452831), (3, 7193484277), (7, 3082921833), (21, 1027640611), (79, 273170289), (179, 120561189), (237, 91056763), (537, 40187063), (553, 39024327), (1253, 17223027), (1659, 13008109), (3759, 5741009), (14141, 1526091), (42423, 508697), (72671, 296961), (98987, 218013)]