21769398

素因数分解:

$2^1\times 3^9\times 7^1\times {\mathrm{79}}^1$

素因数の和:115

約数の個数: 80

約数和(自身を含む): 56686080

約数和(自身を除く): 34916682

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 79, 81, 126, 158, 162, 189, 237, 243, 378, 474, 486, 553, 567, 711, 729, 1106, 1134, 1422, 1458, 1659, 1701, 2133, 2187, 3318, 3402, 4266, 4374, 4977, 5103, 6399, 6561, 9954, 10206, 12798, 13122, 14931, 15309, 19197, 19683, 29862, 30618, 38394, 39366, 44793, 45927, 57591, 89586, 91854, 115182, 134379, 137781, 172773, 268758, 275562, 345546, 403137, 518319, 806274, 1036638, 1209411, 1554957, 2418822, 3109914, 3628233, 7256466, 10884699, 21769398]

約数ペア:

[(1, 21769398), (2, 10884699), (3, 7256466), (6, 3628233), (7, 3109914), (9, 2418822), (14, 1554957), (18, 1209411), (21, 1036638), (27, 806274), (42, 518319), (54, 403137), (63, 345546), (79, 275562), (81, 268758), (126, 172773), (158, 137781), (162, 134379), (189, 115182), (237, 91854), (243, 89586), (378, 57591), (474, 45927), (486, 44793), (553, 39366), (567, 38394), (711, 30618), (729, 29862), (1106, 19683), (1134, 19197), (1422, 15309), (1458, 14931), (1659, 13122), (1701, 12798), (2133, 10206), (2187, 9954), (3318, 6561), (3402, 6399), (4266, 5103), (4374, 4977)]