21252095

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{1181}}^1$

素因数の和:1306

約数の個数: 16

約数和(自身を含む): 26382240

約数和(自身を除く): 5130145

約数列:

[1, 5, 59, 61, 295, 305, 1181, 3599, 5905, 17995, 69679, 72041, 348395, 360205, 4250419, 21252095]

約数ペア:

[(1, 21252095), (5, 4250419), (59, 360205), (61, 348395), (295, 72041), (305, 69679), (1181, 17995), (3599, 5905)]