21397872

素因数分解:

$2^4\times 3^1\times {\mathrm{445789}}^1$

素因数の和:445800

約数の個数: 20

約数和(自身を含む): 55277960

約数和(自身を除く): 33880088

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 445789, 891578, 1337367, 1783156, 2674734, 3566312, 5349468, 7132624, 10698936, 21397872]

約数ペア:

[(1, 21397872), (2, 10698936), (3, 7132624), (4, 5349468), (6, 3566312), (8, 2674734), (12, 1783156), (16, 1337367), (24, 891578), (48, 445789)]