201810021

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1\times {\mathrm{613}}^1$

素因数の和:941

約数の個数: 32

約数和(自身を含む): 314289408

約数和(自身を除く): 112479387

約数列:

[1, 3, 7, 21, 61, 183, 257, 427, 613, 771, 1281, 1799, 1839, 4291, 5397, 12873, 15677, 37393, 47031, 109739, 112179, 157541, 261751, 329217, 472623, 785253, 1102787, 3308361, 9610001, 28830003, 67270007, 201810021]

約数ペア:

[(1, 201810021), (3, 67270007), (7, 28830003), (21, 9610001), (61, 3308361), (183, 1102787), (257, 785253), (427, 472623), (613, 329217), (771, 261751), (1281, 157541), (1799, 112179), (1839, 109739), (4291, 47031), (5397, 37393), (12873, 15677)]