19997215

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{30071}}^1$

素因数の和:30102

約数の個数: 16

約数和(自身を含む): 28869120

約数和(自身を除く): 8871905

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 30071, 150355, 210497, 571349, 1052485, 2856745, 3999443, 19997215]

約数ペア:

[(1, 19997215), (5, 3999443), (7, 2856745), (19, 1052485), (35, 571349), (95, 210497), (133, 150355), (665, 30071)]