20196615

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{1601}}^1$

素因数の和:1667

約数の個数: 24

約数和(自身を含む): 33488208

約数和(自身を除く): 13291593

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 841, 1601, 2523, 4205, 4803, 8005, 12615, 24015, 46429, 139287, 232145, 696435, 1346441, 4039323, 6732205, 20196615]

約数ペア:

[(1, 20196615), (3, 6732205), (5, 4039323), (15, 1346441), (29, 696435), (87, 232145), (145, 139287), (435, 46429), (841, 24015), (1601, 12615), (2523, 8005), (4205, 4803)]