21319308

素因数分解:

$2^2\times 3^3\times {\mathrm{307}}^1\times {\mathrm{643}}^1$

素因数の和:963

約数の個数: 48

約数和(自身を含む): 55538560

約数和(自身を除く): 34219252

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 307, 614, 643, 921, 1228, 1286, 1842, 1929, 2572, 2763, 3684, 3858, 5526, 5787, 7716, 8289, 11052, 11574, 16578, 17361, 23148, 33156, 34722, 69444, 197401, 394802, 592203, 789604, 1184406, 1776609, 2368812, 3553218, 5329827, 7106436, 10659654, 21319308]

約数ペア:

[(1, 21319308), (2, 10659654), (3, 7106436), (4, 5329827), (6, 3553218), (9, 2368812), (12, 1776609), (18, 1184406), (27, 789604), (36, 592203), (54, 394802), (108, 197401), (307, 69444), (614, 34722), (643, 33156), (921, 23148), (1228, 17361), (1286, 16578), (1842, 11574), (1929, 11052), (2572, 8289), (2763, 7716), (3684, 5787), (3858, 5526)]