20774313

素因数分解:

$3^7\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1$

素因数の和:110

約数の個数: 64

約数和(自身を含む): 37785600

約数和(自身を除く): 17011287

約数列:

[1, 3, 7, 9, 21, 23, 27, 59, 63, 69, 81, 161, 177, 189, 207, 243, 413, 483, 531, 567, 621, 729, 1239, 1357, 1449, 1593, 1701, 1863, 2187, 3717, 4071, 4347, 4779, 5103, 5589, 9499, 11151, 12213, 13041, 14337, 15309, 16767, 28497, 33453, 36639, 39123, 43011, 50301, 85491, 100359, 109917, 117369, 129033, 256473, 301077, 329751, 352107, 769419, 903231, 989253, 2308257, 2967759, 6924771, 20774313]

約数ペア:

[(1, 20774313), (3, 6924771), (7, 2967759), (9, 2308257), (21, 989253), (23, 903231), (27, 769419), (59, 352107), (63, 329751), (69, 301077), (81, 256473), (161, 129033), (177, 117369), (189, 109917), (207, 100359), (243, 85491), (413, 50301), (483, 43011), (531, 39123), (567, 36639), (621, 33453), (729, 28497), (1239, 16767), (1357, 15309), (1449, 14337), (1593, 13041), (1701, 12213), (1863, 11151), (2187, 9499), (3717, 5589), (4071, 5103), (4347, 4779)]