21082035

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1481}}^1$

素因数の和:1575

約数の個数: 32

約数和(自身を含む): 36848448

約数和(自身を除く): 15766413

約数列:

[1, 3, 5, 13, 15, 39, 65, 73, 195, 219, 365, 949, 1095, 1481, 2847, 4443, 4745, 7405, 14235, 19253, 22215, 57759, 96265, 108113, 288795, 324339, 540565, 1405469, 1621695, 4216407, 7027345, 21082035]

約数ペア:

[(1, 21082035), (3, 7027345), (5, 4216407), (13, 1621695), (15, 1405469), (39, 540565), (65, 324339), (73, 288795), (195, 108113), (219, 96265), (365, 57759), (949, 22215), (1095, 19253), (1481, 14235), (2847, 7405), (4443, 4745)]