21234892

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 44262400

約数和(自身を除く): 23027508

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 103, 148, 199, 206, 259, 398, 412, 518, 721, 796, 1036, 1393, 1442, 2786, 2884, 3811, 5572, 7363, 7622, 14726, 15244, 20497, 26677, 29452, 40994, 51541, 53354, 81988, 103082, 106708, 143479, 206164, 286958, 573916, 758389, 1516778, 3033556, 5308723, 10617446, 21234892]

約数ペア:

[(1, 21234892), (2, 10617446), (4, 5308723), (7, 3033556), (14, 1516778), (28, 758389), (37, 573916), (74, 286958), (103, 206164), (148, 143479), (199, 106708), (206, 103082), (259, 81988), (398, 53354), (412, 51541), (518, 40994), (721, 29452), (796, 26677), (1036, 20497), (1393, 15244), (1442, 14726), (2786, 7622), (2884, 7363), (3811, 5572)]