21770030

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1621}}^1$

素因数の和:1724

約数の個数: 32

約数和(自身を含む): 42042240

約数和(自身を除く): 20272210

約数列:

[1, 2, 5, 10, 17, 34, 79, 85, 158, 170, 395, 790, 1343, 1621, 2686, 3242, 6715, 8105, 13430, 16210, 27557, 55114, 128059, 137785, 256118, 275570, 640295, 1280590, 2177003, 4354006, 10885015, 21770030]

約数ペア:

[(1, 21770030), (2, 10885015), (5, 4354006), (10, 2177003), (17, 1280590), (34, 640295), (79, 275570), (85, 256118), (158, 137785), (170, 128059), (395, 55114), (790, 27557), (1343, 16210), (1621, 13430), (2686, 8105), (3242, 6715)]