20653281

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{911}}^1$

素因数の和:1157

約数の個数: 24

約数和(自身を含む): 32722560

約数和(自身を除く): 12069279

約数列:

[1, 3, 9, 11, 33, 99, 229, 687, 911, 2061, 2519, 2733, 7557, 8199, 10021, 22671, 30063, 90189, 208619, 625857, 1877571, 2294809, 6884427, 20653281]

約数ペア:

[(1, 20653281), (3, 6884427), (9, 2294809), (11, 1877571), (33, 625857), (99, 208619), (229, 90189), (687, 30063), (911, 22671), (2061, 10021), (2519, 8199), (2733, 7557)]