31980543

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{521}}^1$

素因数の和:647

約数の個数: 32

約数和(自身を含む): 50780160

約数和(自身を除く): 18799617

約数列:

[1, 3, 7, 21, 37, 79, 111, 237, 259, 521, 553, 777, 1563, 1659, 2923, 3647, 8769, 10941, 19277, 20461, 41159, 57831, 61383, 123477, 134939, 288113, 404817, 864339, 1522883, 4568649, 10660181, 31980543]

約数ペア:

[(1, 31980543), (3, 10660181), (7, 4568649), (21, 1522883), (37, 864339), (79, 404817), (111, 288113), (237, 134939), (259, 123477), (521, 61383), (553, 57831), (777, 41159), (1563, 20461), (1659, 19277), (2923, 10941), (3647, 8769)]