21495204

素因数分解:

$2^2\times 3^2\times {\mathrm{401}}^1\times {\mathrm{1489}}^1$

素因数の和:1900

約数の個数: 36

約数和(自身を含む): 54507180

約数和(自身を除く): 33011976

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 401, 802, 1203, 1489, 1604, 2406, 2978, 3609, 4467, 4812, 5956, 7218, 8934, 13401, 14436, 17868, 26802, 53604, 597089, 1194178, 1791267, 2388356, 3582534, 5373801, 7165068, 10747602, 21495204]

約数ペア:

[(1, 21495204), (2, 10747602), (3, 7165068), (4, 5373801), (6, 3582534), (9, 2388356), (12, 1791267), (18, 1194178), (36, 597089), (401, 53604), (802, 26802), (1203, 17868), (1489, 14436), (1604, 13401), (2406, 8934), (2978, 7218), (3609, 5956), (4467, 4812)]