21508070

素因数分解:

$2^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{20101}}^1$

素因数の和:20215

約数の個数: 16

約数和(自身を含む): 39078288

約数和(自身を除く): 17570218

約数列:

[1, 2, 5, 10, 107, 214, 535, 1070, 20101, 40202, 100505, 201010, 2150807, 4301614, 10754035, 21508070]

約数ペア:

[(1, 21508070), (2, 10754035), (5, 4301614), (10, 2150807), (107, 201010), (214, 100505), (535, 40202), (1070, 20101)]