18808815

素因数分解:

$3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1$

素因数の和:363

約数の個数: 32

約数和(自身を含む): 31008960

約数和(自身を除く): 12200145

約数列:

[1, 3, 5, 15, 73, 89, 193, 219, 267, 365, 445, 579, 965, 1095, 1335, 2895, 6497, 14089, 17177, 19491, 32485, 42267, 51531, 70445, 85885, 97455, 211335, 257655, 1253921, 3761763, 6269605, 18808815]

約数ペア:

[(1, 18808815), (3, 6269605), (5, 3761763), (15, 1253921), (73, 257655), (89, 211335), (193, 97455), (219, 85885), (267, 70445), (365, 51531), (445, 42267), (579, 32485), (965, 19491), (1095, 17177), (1335, 14089), (2895, 6497)]