21085503

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{4561}}^1$

素因数の和:4654

約数の個数: 16

約数和(自身を含む): 29780736

約数和(自身を除く): 8695233

約数列:

[1, 3, 23, 67, 69, 201, 1541, 4561, 4623, 13683, 104903, 305587, 314709, 916761, 7028501, 21085503]

約数ペア:

[(1, 21085503), (3, 7028501), (23, 916761), (67, 314709), (69, 305587), (201, 104903), (1541, 13683), (4561, 4623)]