218636901

素因数分解:

$3^4\times 7^1\times {\mathrm{167}}^1\times {\mathrm{2309}}^1$

素因数の和:2495

約数の個数: 40

約数和(自身を含む): 375661440

約数和(自身を除く): 157024539

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 167, 189, 501, 567, 1169, 1503, 2309, 3507, 4509, 6927, 10521, 13527, 16163, 20781, 31563, 48489, 62343, 94689, 145467, 187029, 385603, 436401, 1156809, 1309203, 2699221, 3470427, 8097663, 10411281, 24292989, 31233843, 72878967, 218636901]

約数ペア:

[(1, 218636901), (3, 72878967), (7, 31233843), (9, 24292989), (21, 10411281), (27, 8097663), (63, 3470427), (81, 2699221), (167, 1309203), (189, 1156809), (501, 436401), (567, 385603), (1169, 187029), (1503, 145467), (2309, 94689), (3507, 62343), (4509, 48489), (6927, 31563), (10521, 20781), (13527, 16163)]