21606590

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{349}}^1$

素因数の和:548

約数の個数: 32

約数和(自身を含む): 40219200

約数和(自身を除く): 18612610

約数列:

[1, 2, 5, 10, 41, 82, 151, 205, 302, 349, 410, 698, 755, 1510, 1745, 3490, 6191, 12382, 14309, 28618, 30955, 52699, 61910, 71545, 105398, 143090, 263495, 526990, 2160659, 4321318, 10803295, 21606590]

約数ペア:

[(1, 21606590), (2, 10803295), (5, 4321318), (10, 2160659), (41, 526990), (82, 263495), (151, 143090), (205, 105398), (302, 71545), (349, 61910), (410, 52699), (698, 30955), (755, 28618), (1510, 14309), (1745, 12382), (3490, 6191)]