138864831

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1\times {\mathrm{389}}^1$

素因数の和:679

約数の個数: 32

約数和(自身を含む): 215654400

約数和(自身を除く): 76789569

約数列:

[1, 3, 7, 21, 89, 191, 267, 389, 573, 623, 1167, 1337, 1869, 2723, 4011, 8169, 16999, 34621, 50997, 74299, 103863, 118993, 222897, 242347, 356979, 520093, 727041, 1560279, 6612611, 19837833, 46288277, 138864831]

約数ペア:

[(1, 138864831), (3, 46288277), (7, 19837833), (21, 6612611), (89, 1560279), (191, 727041), (267, 520093), (389, 356979), (573, 242347), (623, 222897), (1167, 118993), (1337, 103863), (1869, 74299), (2723, 50997), (4011, 34621), (8169, 16999)]