19971915

素因数分解:

$3^1\times 5^1\times {\mathrm{191}}^1\times {\mathrm{6971}}^1$

素因数の和:7170

約数の個数: 16

約数和(自身を含む): 32126976

約数和(自身を除く): 12155061

約数列:

[1, 3, 5, 15, 191, 573, 955, 2865, 6971, 20913, 34855, 104565, 1331461, 3994383, 6657305, 19971915]

約数ペア:

[(1, 19971915), (3, 6657305), (5, 3994383), (15, 1331461), (191, 104565), (573, 34855), (955, 20913), (2865, 6971)]