72166857

素因数分解:

$3^1\times 7^4\times {\mathrm{43}}^1\times {\mathrm{233}}^1$

素因数の和:307

約数の個数: 40

約数和(自身を含む): 115356384

約数和(自身を除く): 43189527

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 233, 301, 343, 699, 903, 1029, 1631, 2107, 2401, 4893, 6321, 7203, 10019, 11417, 14749, 30057, 34251, 44247, 70133, 79919, 103243, 210399, 239757, 309729, 490931, 559433, 1472793, 1678299, 3436517, 10309551, 24055619, 72166857]

約数ペア:

[(1, 72166857), (3, 24055619), (7, 10309551), (21, 3436517), (43, 1678299), (49, 1472793), (129, 559433), (147, 490931), (233, 309729), (301, 239757), (343, 210399), (699, 103243), (903, 79919), (1029, 70133), (1631, 44247), (2107, 34251), (2401, 30057), (4893, 14749), (6321, 11417), (7203, 10019)]