21957663

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{269}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 37946880

約数和(自身を除く): 15989217

約数列:

[1, 3, 7, 13, 21, 23, 39, 69, 91, 161, 169, 269, 273, 299, 483, 507, 807, 897, 1183, 1883, 2093, 3497, 3549, 3887, 5649, 6187, 6279, 10491, 11661, 18561, 24479, 27209, 43309, 45461, 73437, 80431, 81627, 129927, 136383, 241293, 318227, 563017, 954681, 1045603, 1689051, 3136809, 7319221, 21957663]

約数ペア:

[(1, 21957663), (3, 7319221), (7, 3136809), (13, 1689051), (21, 1045603), (23, 954681), (39, 563017), (69, 318227), (91, 241293), (161, 136383), (169, 129927), (269, 81627), (273, 80431), (299, 73437), (483, 45461), (507, 43309), (807, 27209), (897, 24479), (1183, 18561), (1883, 11661), (2093, 10491), (3497, 6279), (3549, 6187), (3887, 5649)]