21137808

素因数分解:

$2^4\times 3^1\times {\mathrm{440371}}^1$

素因数の和:440382

約数の個数: 20

約数和(自身を含む): 54606128

約数和(自身を除く): 33468320

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 440371, 880742, 1321113, 1761484, 2642226, 3522968, 5284452, 7045936, 10568904, 21137808]

約数ペア:

[(1, 21137808), (2, 10568904), (3, 7045936), (4, 5284452), (6, 3522968), (8, 2642226), (12, 1761484), (16, 1321113), (24, 880742), (48, 440371)]