21063020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{5039}}^1$

素因数の和:5078

約数の個数: 48

約数和(自身を含む): 50803200

約数和(自身を除く): 29740180

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 5039, 10078, 20156, 25195, 50390, 55429, 95741, 100780, 110858, 191482, 221716, 277145, 382964, 478705, 554290, 957410, 1053151, 1108580, 1914820, 2106302, 4212604, 5265755, 10531510, 21063020]

約数ペア:

[(1, 21063020), (2, 10531510), (4, 5265755), (5, 4212604), (10, 2106302), (11, 1914820), (19, 1108580), (20, 1053151), (22, 957410), (38, 554290), (44, 478705), (55, 382964), (76, 277145), (95, 221716), (110, 191482), (190, 110858), (209, 100780), (220, 95741), (380, 55429), (418, 50390), (836, 25195), (1045, 20156), (2090, 10078), (4180, 5039)]