12721491

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:180

約数の個数: 36

約数和(自身を含む): 20082712

約数和(自身を除く): 7361221

約数列:

[1, 3, 9, 17, 51, 67, 73, 153, 201, 219, 289, 603, 657, 867, 1139, 1241, 2601, 3417, 3723, 4891, 10251, 11169, 14673, 19363, 21097, 44019, 58089, 63291, 83147, 174267, 189873, 249441, 748323, 1413499, 4240497, 12721491]

約数ペア:

[(1, 12721491), (3, 4240497), (9, 1413499), (17, 748323), (51, 249441), (67, 189873), (73, 174267), (153, 83147), (201, 63291), (219, 58089), (289, 44019), (603, 21097), (657, 19363), (867, 14673), (1139, 11169), (1241, 10251), (2601, 4891), (3417, 3723)]