20285379

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^2\times {\mathrm{53}}^1$

素因数の和:168

約数の個数: 36

約数和(自身を含む): 31893264

約数和(自身を除く): 11607885

約数列:

[1, 3, 9, 23, 43, 53, 69, 129, 159, 207, 387, 477, 989, 1219, 1849, 2279, 2967, 3657, 5547, 6837, 8901, 10971, 16641, 20511, 42527, 52417, 97997, 127581, 157251, 293991, 382743, 471753, 881973, 2253931, 6761793, 20285379]

約数ペア:

[(1, 20285379), (3, 6761793), (9, 2253931), (23, 881973), (43, 471753), (53, 382743), (69, 293991), (129, 157251), (159, 127581), (207, 97997), (387, 52417), (477, 42527), (989, 20511), (1219, 16641), (1849, 10971), (2279, 8901), (2967, 6837), (3657, 5547)]