20451669

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^2\times {\mathrm{263}}^1$

素因数の和:326

約数の個数: 36

約数和(自身を含む): 33286176

約数和(自身を除く): 12834507

約数列:

[1, 3, 7, 21, 23, 49, 69, 147, 161, 263, 483, 529, 789, 1127, 1587, 1841, 3381, 3703, 5523, 6049, 11109, 12887, 18147, 25921, 38661, 42343, 77763, 127029, 139127, 296401, 417381, 889203, 973889, 2921667, 6817223, 20451669]

約数ペア:

[(1, 20451669), (3, 6817223), (7, 2921667), (21, 973889), (23, 889203), (49, 417381), (69, 296401), (147, 139127), (161, 127029), (263, 77763), (483, 42343), (529, 38661), (789, 25921), (1127, 18147), (1587, 12887), (1841, 11109), (3381, 6049), (3703, 5523)]