21624020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{433}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 49871808

約数和(自身を除く): 28247788

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 227, 433, 454, 866, 908, 1135, 1732, 2165, 2270, 2497, 4330, 4540, 4763, 4994, 8660, 9526, 9988, 12485, 19052, 23815, 24970, 47630, 49940, 95260, 98291, 196582, 393164, 491455, 982910, 1081201, 1965820, 2162402, 4324804, 5406005, 10812010, 21624020]

約数ペア:

[(1, 21624020), (2, 10812010), (4, 5406005), (5, 4324804), (10, 2162402), (11, 1965820), (20, 1081201), (22, 982910), (44, 491455), (55, 393164), (110, 196582), (220, 98291), (227, 95260), (433, 49940), (454, 47630), (866, 24970), (908, 23815), (1135, 19052), (1732, 12485), (2165, 9988), (2270, 9526), (2497, 8660), (4330, 4994), (4540, 4763)]