21553155

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12281}}^1$

素因数の和:12308

約数の個数: 32

約数和(自身を含む): 41267520

約数和(自身を除く): 19714365

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 12281, 36843, 61405, 110529, 159653, 184215, 331587, 478959, 552645, 798265, 1436877, 1657935, 2394795, 4310631, 7184385, 21553155]

約数ペア:

[(1, 21553155), (3, 7184385), (5, 4310631), (9, 2394795), (13, 1657935), (15, 1436877), (27, 798265), (39, 552645), (45, 478959), (65, 331587), (117, 184215), (135, 159653), (195, 110529), (351, 61405), (585, 36843), (1755, 12281)]