20213631

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{4091}}^1$

素因数の和:4164

約数の個数: 20

約数和(自身を含む): 30698184

約数和(自身を除く): 10484553

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 4091, 4941, 12273, 36819, 110457, 249551, 331371, 748653, 2245959, 6737877, 20213631]

約数ペア:

[(1, 20213631), (3, 6737877), (9, 2245959), (27, 748653), (61, 331371), (81, 249551), (183, 110457), (549, 36819), (1647, 12273), (4091, 4941)]