18718155

素因数分解:

$3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2273}}^1$

素因数の和:2348

約数の個数: 32

約数和(自身を含む): 33837120

約数和(自身を除く): 15118965

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 135, 183, 305, 549, 915, 1647, 2273, 2745, 6819, 8235, 11365, 20457, 34095, 61371, 102285, 138653, 306855, 415959, 693265, 1247877, 2079795, 3743631, 6239385, 18718155]

約数ペア:

[(1, 18718155), (3, 6239385), (5, 3743631), (9, 2079795), (15, 1247877), (27, 693265), (45, 415959), (61, 306855), (135, 138653), (183, 102285), (305, 61371), (549, 34095), (915, 20457), (1647, 11365), (2273, 8235), (2745, 6819)]