21286530

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{78839}}^1$

素因数の和:78855

約数の個数: 32

約数和(自身を含む): 56764800

約数和(自身を除く): 35478270

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 78839, 157678, 236517, 394195, 473034, 709551, 788390, 1182585, 1419102, 2128653, 2365170, 3547755, 4257306, 7095510, 10643265, 21286530]

約数ペア:

[(1, 21286530), (2, 10643265), (3, 7095510), (5, 4257306), (6, 3547755), (9, 2365170), (10, 2128653), (15, 1419102), (18, 1182585), (27, 788390), (30, 709551), (45, 473034), (54, 394195), (90, 236517), (135, 157678), (270, 78839)]