18205929

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 32348160

約数和(自身を除く): 14142231

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 89, 119, 153, 191, 267, 357, 573, 623, 801, 1071, 1337, 1513, 1719, 1869, 3247, 4011, 4539, 5607, 9741, 10591, 12033, 13617, 16999, 22729, 29223, 31773, 50997, 68187, 95319, 118993, 152991, 204561, 288983, 356979, 866949, 1070937, 2022881, 2600847, 6068643, 18205929]

約数ペア:

[(1, 18205929), (3, 6068643), (7, 2600847), (9, 2022881), (17, 1070937), (21, 866949), (51, 356979), (63, 288983), (89, 204561), (119, 152991), (153, 118993), (191, 95319), (267, 68187), (357, 50997), (573, 31773), (623, 29223), (801, 22729), (1071, 16999), (1337, 13617), (1513, 12033), (1719, 10591), (1869, 9741), (3247, 5607), (4011, 4539)]