18807978

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{1039}}^1$

素因数の和:1482

約数の個数: 32

約数和(自身を含む): 43130880

約数和(自身を除く): 24322902

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 431, 862, 1039, 1293, 2078, 2586, 3017, 3117, 6034, 6234, 7273, 9051, 14546, 18102, 21819, 43638, 447809, 895618, 1343427, 2686854, 3134663, 6269326, 9403989, 18807978]

約数ペア:

[(1, 18807978), (2, 9403989), (3, 6269326), (6, 3134663), (7, 2686854), (14, 1343427), (21, 895618), (42, 447809), (431, 43638), (862, 21819), (1039, 18102), (1293, 14546), (2078, 9051), (2586, 7273), (3017, 6234), (3117, 6034)]