20131209

素因数分解:

$3^2\times 7^2\times {\mathrm{191}}^1\times {\mathrm{239}}^1$

素因数の和:450

約数の個数: 36

約数和(自身を含む): 34145280

約数和(自身を除く): 14014071

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 191, 239, 441, 573, 717, 1337, 1673, 1719, 2151, 4011, 5019, 9359, 11711, 12033, 15057, 28077, 35133, 45649, 84231, 105399, 136947, 319543, 410841, 958629, 2236801, 2875887, 6710403, 20131209]

約数ペア:

[(1, 20131209), (3, 6710403), (7, 2875887), (9, 2236801), (21, 958629), (49, 410841), (63, 319543), (147, 136947), (191, 105399), (239, 84231), (441, 45649), (573, 35133), (717, 28077), (1337, 15057), (1673, 12033), (1719, 11711), (2151, 9359), (4011, 5019)]