19862661

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2347}}^1$

素因数の和:2401

約数の個数: 32

約数和(自身を含む): 33660928

約数和(自身を除く): 13798267

約数列:

[1, 3, 7, 13, 21, 31, 39, 91, 93, 217, 273, 403, 651, 1209, 2347, 2821, 7041, 8463, 16429, 30511, 49287, 72757, 91533, 213577, 218271, 509299, 640731, 945841, 1527897, 2837523, 6620887, 19862661]

約数ペア:

[(1, 19862661), (3, 6620887), (7, 2837523), (13, 1527897), (21, 945841), (31, 640731), (39, 509299), (91, 218271), (93, 213577), (217, 91533), (273, 72757), (403, 49287), (651, 30511), (1209, 16429), (2347, 8463), (2821, 7041)]