21388798

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{4421}}^1$

素因数の和:4523

約数の個数: 16

約数和(自身を含む): 33430320

約数和(自身を除く): 12041522

約数列:

[1, 2, 41, 59, 82, 118, 2419, 4421, 4838, 8842, 181261, 260839, 362522, 521678, 10694399, 21388798]

約数ペア:

[(1, 21388798), (2, 10694399), (41, 521678), (59, 362522), (82, 260839), (118, 181261), (2419, 8842), (4421, 4838)]