20302569

素因数分解:

$3^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{587}}^1$

素因数の和:667

約数の個数: 40

約数和(自身を含む): 35289408

約数和(自身を除く): 14986839

約数列:

[1, 3, 7, 9, 21, 27, 61, 63, 81, 183, 189, 427, 549, 567, 587, 1281, 1647, 1761, 3843, 4109, 4941, 5283, 11529, 12327, 15849, 34587, 35807, 36981, 47547, 107421, 110943, 250649, 322263, 332829, 751947, 966789, 2255841, 2900367, 6767523, 20302569]

約数ペア:

[(1, 20302569), (3, 6767523), (7, 2900367), (9, 2255841), (21, 966789), (27, 751947), (61, 332829), (63, 322263), (81, 250649), (183, 110943), (189, 107421), (427, 47547), (549, 36981), (567, 35807), (587, 34587), (1281, 15849), (1647, 12327), (1761, 11529), (3843, 5283), (4109, 4941)]