18539145

素因数分解:

$3^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1543}}^1$

素因数の和:1646

約数の個数: 32

約数和(自身を含む): 33350400

約数和(自身を除く): 14811255

約数列:

[1, 3, 5, 9, 15, 27, 45, 89, 135, 267, 445, 801, 1335, 1543, 2403, 4005, 4629, 7715, 12015, 13887, 23145, 41661, 69435, 137327, 208305, 411981, 686635, 1235943, 2059905, 3707829, 6179715, 18539145]

約数ペア:

[(1, 18539145), (3, 6179715), (5, 3707829), (9, 2059905), (15, 1235943), (27, 686635), (45, 411981), (89, 208305), (135, 137327), (267, 69435), (445, 41661), (801, 23145), (1335, 13887), (1543, 12015), (2403, 7715), (4005, 4629)]