20165327

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:255

約数の個数: 32

約数和(自身を含む): 26611200

約数和(自身を除く): 6445873

約数列:

[1, 7, 13, 19, 91, 107, 109, 133, 247, 749, 763, 1391, 1417, 1729, 2033, 2071, 9737, 9919, 11663, 14231, 14497, 26429, 26923, 81641, 151619, 185003, 188461, 221597, 1061333, 1551179, 2880761, 20165327]

約数ペア:

[(1, 20165327), (7, 2880761), (13, 1551179), (19, 1061333), (91, 221597), (107, 188461), (109, 185003), (133, 151619), (247, 81641), (749, 26923), (763, 26429), (1391, 14497), (1417, 14231), (1729, 11663), (2033, 9919), (2071, 9737)]