21137382

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{199}}^1\times {\mathrm{281}}^1$

素因数の和:498

約数の個数: 64

約数和(自身を含む): 54144000

約数和(自身を除く): 33006618

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 199, 281, 378, 398, 562, 597, 843, 1194, 1393, 1686, 1791, 1967, 2529, 2786, 3582, 3934, 4179, 5058, 5373, 5901, 7587, 8358, 10746, 11802, 12537, 15174, 17703, 25074, 35406, 37611, 53109, 55919, 75222, 106218, 111838, 167757, 335514, 391433, 503271, 782866, 1006542, 1174299, 1509813, 2348598, 3019626, 3522897, 7045794, 10568691, 21137382]

約数ペア:

[(1, 21137382), (2, 10568691), (3, 7045794), (6, 3522897), (7, 3019626), (9, 2348598), (14, 1509813), (18, 1174299), (21, 1006542), (27, 782866), (42, 503271), (54, 391433), (63, 335514), (126, 167757), (189, 111838), (199, 106218), (281, 75222), (378, 55919), (398, 53109), (562, 37611), (597, 35406), (843, 25074), (1194, 17703), (1393, 15174), (1686, 12537), (1791, 11802), (1967, 10746), (2529, 8358), (2786, 7587), (3582, 5901), (3934, 5373), (4179, 5058)]