21463218

素因数分解:

$2^1\times 3^7\times 7^1\times {\mathrm{701}}^1$

素因数の和:731

約数の個数: 64

約数和(自身を含む): 55261440

約数和(自身を除く): 33798222

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 243, 378, 486, 567, 701, 729, 1134, 1402, 1458, 1701, 2103, 2187, 3402, 4206, 4374, 4907, 5103, 6309, 9814, 10206, 12618, 14721, 15309, 18927, 29442, 30618, 37854, 44163, 56781, 88326, 113562, 132489, 170343, 264978, 340686, 397467, 511029, 794934, 1022058, 1192401, 1533087, 2384802, 3066174, 3577203, 7154406, 10731609, 21463218]

約数ペア:

[(1, 21463218), (2, 10731609), (3, 7154406), (6, 3577203), (7, 3066174), (9, 2384802), (14, 1533087), (18, 1192401), (21, 1022058), (27, 794934), (42, 511029), (54, 397467), (63, 340686), (81, 264978), (126, 170343), (162, 132489), (189, 113562), (243, 88326), (378, 56781), (486, 44163), (567, 37854), (701, 30618), (729, 29442), (1134, 18927), (1402, 15309), (1458, 14721), (1701, 12618), (2103, 10206), (2187, 9814), (3402, 6309), (4206, 5103), (4374, 4907)]