18801105

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{283}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 31190016

約数和(自身を除く): 12388911

約数列:

[1, 3, 5, 15, 43, 103, 129, 215, 283, 309, 515, 645, 849, 1415, 1545, 4245, 4429, 12169, 13287, 22145, 29149, 36507, 60845, 66435, 87447, 145745, 182535, 437235, 1253407, 3760221, 6267035, 18801105]

約数ペア:

[(1, 18801105), (3, 6267035), (5, 3760221), (15, 1253407), (43, 437235), (103, 182535), (129, 145745), (215, 87447), (283, 66435), (309, 60845), (515, 36507), (645, 29149), (849, 22145), (1415, 13287), (1545, 12169), (4245, 4429)]