20937567

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{647}}^1$

素因数の和:747

約数の個数: 32

約数和(自身を含む): 33841152

約数和(自身を除く): 12903585

約数列:

[1, 3, 7, 21, 23, 67, 69, 161, 201, 469, 483, 647, 1407, 1541, 1941, 4529, 4623, 10787, 13587, 14881, 32361, 43349, 44643, 104167, 130047, 303443, 312501, 910329, 997027, 2991081, 6979189, 20937567]

約数ペア:

[(1, 20937567), (3, 6979189), (7, 2991081), (21, 997027), (23, 910329), (67, 312501), (69, 303443), (161, 130047), (201, 104167), (469, 44643), (483, 43349), (647, 32361), (1407, 14881), (1541, 13587), (1941, 10787), (4529, 4623)]