20823453

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{6481}}^1$

素因数の和:6514

約数の個数: 32

約数和(自身を含む): 37336320

約数和(自身を除く): 16512867

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 119, 153, 189, 357, 459, 1071, 3213, 6481, 19443, 45367, 58329, 110177, 136101, 174987, 330531, 408303, 771239, 991593, 1224909, 2313717, 2974779, 6941151, 20823453]

約数ペア:

[(1, 20823453), (3, 6941151), (7, 2974779), (9, 2313717), (17, 1224909), (21, 991593), (27, 771239), (51, 408303), (63, 330531), (119, 174987), (153, 136101), (189, 110177), (357, 58329), (459, 45367), (1071, 19443), (3213, 6481)]