18519928

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{7691}}^1$

素因数の和:7747

約数の個数: 32

約数和(自身を含む): 40613760

約数和(自身を除く): 22093832

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 602, 1204, 2408, 7691, 15382, 30764, 53837, 61528, 107674, 215348, 330713, 430696, 661426, 1322852, 2314991, 2645704, 4629982, 9259964, 18519928]

約数ペア:

[(1, 18519928), (2, 9259964), (4, 4629982), (7, 2645704), (8, 2314991), (14, 1322852), (28, 661426), (43, 430696), (56, 330713), (86, 215348), (172, 107674), (301, 61528), (344, 53837), (602, 30764), (1204, 15382), (2408, 7691)]