20672799

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{733}}^1$

素因数の和:839

約数の個数: 32

約数和(自身を含む): 33822720

約数和(自身を除く): 13149921

約数列:

[1, 3, 7, 17, 21, 51, 79, 119, 237, 357, 553, 733, 1343, 1659, 2199, 4029, 5131, 9401, 12461, 15393, 28203, 37383, 57907, 87227, 173721, 261681, 405349, 984419, 1216047, 2953257, 6890933, 20672799]

約数ペア:

[(1, 20672799), (3, 6890933), (7, 2953257), (17, 1216047), (21, 984419), (51, 405349), (79, 261681), (119, 173721), (237, 87227), (357, 57907), (553, 37383), (733, 28203), (1343, 15393), (1659, 12461), (2199, 9401), (4029, 5131)]