20556627

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{347}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 35546112

約数和(自身を除く): 14989485

約数列:

[1, 3, 7, 13, 21, 31, 39, 49, 91, 93, 147, 217, 273, 347, 403, 637, 651, 1041, 1209, 1519, 1911, 2429, 2821, 4511, 4557, 7287, 8463, 10757, 13533, 17003, 19747, 31577, 32271, 51009, 59241, 75299, 94731, 139841, 221039, 225897, 419523, 527093, 663117, 978887, 1581279, 2936661, 6852209, 20556627]

約数ペア:

[(1, 20556627), (3, 6852209), (7, 2936661), (13, 1581279), (21, 978887), (31, 663117), (39, 527093), (49, 419523), (91, 225897), (93, 221039), (147, 139841), (217, 94731), (273, 75299), (347, 59241), (403, 51009), (637, 32271), (651, 31577), (1041, 19747), (1209, 17003), (1519, 13533), (1911, 10757), (2429, 8463), (2821, 7287), (4511, 4557)]