20243517

素因数分解:

$3^1\times 7^3\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:318

約数の個数: 32

約数和(自身を含む): 31948800

約数和(自身を除く): 11705283

約数列:

[1, 3, 7, 21, 49, 103, 147, 191, 309, 343, 573, 721, 1029, 1337, 2163, 4011, 5047, 9359, 15141, 19673, 28077, 35329, 59019, 65513, 105987, 137711, 196539, 413133, 963977, 2891931, 6747839, 20243517]

約数ペア:

[(1, 20243517), (3, 6747839), (7, 2891931), (21, 963977), (49, 413133), (103, 196539), (147, 137711), (191, 105987), (309, 65513), (343, 59019), (573, 35329), (721, 28077), (1029, 19673), (1337, 15141), (2163, 9359), (4011, 5047)]