21517090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{2063}}^1$

素因数の和:2226

約数の個数: 32

約数和(自身を含む): 44582400

約数和(自身を除く): 23065310

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 149, 298, 745, 1043, 1490, 2063, 2086, 4126, 5215, 10315, 10430, 14441, 20630, 28882, 72205, 144410, 307387, 614774, 1536935, 2151709, 3073870, 4303418, 10758545, 21517090]

約数ペア:

[(1, 21517090), (2, 10758545), (5, 4303418), (7, 3073870), (10, 2151709), (14, 1536935), (35, 614774), (70, 307387), (149, 144410), (298, 72205), (745, 28882), (1043, 20630), (1490, 14441), (2063, 10430), (2086, 10315), (4126, 5215)]