12721492

素因数分解:

$2^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1901}}^1$

素因数の和:2151

約数の個数: 24

約数和(自身を含む): 25562880

約数和(自身を除く): 12841388

約数列:

[1, 2, 4, 7, 14, 28, 239, 478, 956, 1673, 1901, 3346, 3802, 6692, 7604, 13307, 26614, 53228, 454339, 908678, 1817356, 3180373, 6360746, 12721492]

約数ペア:

[(1, 12721492), (2, 6360746), (4, 3180373), (7, 1817356), (14, 908678), (28, 454339), (239, 53228), (478, 26614), (956, 13307), (1673, 7604), (1901, 6692), (3346, 3802)]