21441245

素因数分解:

$5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{4057}}^1$

素因数の和:4220

約数の個数: 16

約数和(自身を含む): 29607168

約数和(自身を除く): 8165923

約数列:

[1, 5, 7, 35, 151, 755, 1057, 4057, 5285, 20285, 28399, 141995, 612607, 3063035, 4288249, 21441245]

約数ペア:

[(1, 21441245), (5, 4288249), (7, 3063035), (35, 612607), (151, 141995), (755, 28399), (1057, 20285), (4057, 5285)]