21084830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{2749}}^1$

素因数の和:2828

約数の個数: 32

約数和(自身を含む): 41580000

約数和(自身を除く): 20495170

約数列:

[1, 2, 5, 10, 13, 26, 59, 65, 118, 130, 295, 590, 767, 1534, 2749, 3835, 5498, 7670, 13745, 27490, 35737, 71474, 162191, 178685, 324382, 357370, 810955, 1621910, 2108483, 4216966, 10542415, 21084830]

約数ペア:

[(1, 21084830), (2, 10542415), (5, 4216966), (10, 2108483), (13, 1621910), (26, 810955), (59, 357370), (65, 324382), (118, 178685), (130, 162191), (295, 71474), (590, 35737), (767, 27490), (1534, 13745), (2749, 7670), (3835, 5498)]