199919247

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{821}}^1$

素因数の和:1039

約数の個数: 32

約数和(自身を含む): 299234304

約数和(自身を除く): 99315057

約数列:

[1, 3, 11, 33, 47, 141, 157, 471, 517, 821, 1551, 1727, 2463, 5181, 7379, 9031, 22137, 27093, 38587, 81169, 115761, 128897, 243507, 386691, 424457, 1273371, 1417867, 4253601, 6058159, 18174477, 66639749, 199919247]

約数ペア:

[(1, 199919247), (3, 66639749), (11, 18174477), (33, 6058159), (47, 4253601), (141, 1417867), (157, 1273371), (471, 424457), (517, 386691), (821, 243507), (1551, 128897), (1727, 115761), (2463, 81169), (5181, 38587), (7379, 27093), (9031, 22137)]