18291285

素因数分解:

$3^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{863}}^1$

素因数の和:1034

約数の個数: 32

約数和(自身を含む): 32762880

約数和(自身を除く): 14471595

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 157, 471, 785, 863, 1413, 2355, 2589, 4239, 4315, 7065, 7767, 12945, 21195, 23301, 38835, 116505, 135491, 406473, 677455, 1219419, 2032365, 3658257, 6097095, 18291285]

約数ペア:

[(1, 18291285), (3, 6097095), (5, 3658257), (9, 2032365), (15, 1219419), (27, 677455), (45, 406473), (135, 135491), (157, 116505), (471, 38835), (785, 23301), (863, 21195), (1413, 12945), (2355, 7767), (2589, 7065), (4239, 4315)]