291201245

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{21821}}^1$

素因数の和:22000

約数の個数: 16

約数和(自身を含む): 372370608

約数和(自身を除く): 81169363

約数列:

[1, 5, 17, 85, 157, 785, 2669, 13345, 21821, 109105, 370957, 1854785, 3425897, 17129485, 58240249, 291201245]

約数ペア:

[(1, 291201245), (5, 58240249), (17, 17129485), (85, 3425897), (157, 1854785), (785, 370957), (2669, 109105), (13345, 21821)]