19979102

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{69857}}^1$

素因数の和:69883

約数の個数: 16

約数和(自身を含む): 35208432

約数和(自身を除く): 15229330

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 69857, 139714, 768427, 908141, 1536854, 1816282, 9989551, 19979102]

約数ペア:

[(1, 19979102), (2, 9989551), (11, 1816282), (13, 1536854), (22, 908141), (26, 768427), (143, 139714), (286, 69857)]