201988462053

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{506236747}}^1$

素因数の和:506236776

約数の個数: 16

約数和(自身を含む): 323991518720

約数和(自身を除く): 122003056667

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 506236747, 1518710241, 3543657229, 9618498193, 10630971687, 28855494579, 67329487351, 201988462053]

約数ペア:

[(1, 201988462053), (3, 67329487351), (7, 28855494579), (19, 10630971687), (21, 9618498193), (57, 3543657229), (133, 1518710241), (399, 506236747)]