1720346481

素因数分解:

$3^2\times 7^1\times {\mathrm{6781}}^1\times {\mathrm{4027}}^1$

素因数の和:10821

約数の個数: 24

約数和(自身を含む): 2841061184

約数和(自身を除く): 1120714703

約数列:

[1, 3, 7, 9, 21, 63, 4027, 6781, 12081, 20343, 28189, 36243, 47467, 61029, 84567, 142401, 253701, 427203, 27307087, 81921261, 191149609, 245763783, 573448827, 1720346481]

約数ペア:

[(1, 1720346481), (3, 573448827), (7, 245763783), (9, 191149609), (21, 81921261), (63, 27307087), (4027, 427203), (6781, 253701), (12081, 142401), (20343, 84567), (28189, 61029), (36243, 47467)]