21530986

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{3919}}^1$

素因数の和:4029

約数の個数: 16

約数和(自身を含む): 33586560

約数和(自身を除く): 12055574

約数列:

[1, 2, 41, 67, 82, 134, 2747, 3919, 5494, 7838, 160679, 262573, 321358, 525146, 10765493, 21530986]

約数ペア:

[(1, 21530986), (2, 10765493), (41, 525146), (67, 321358), (82, 262573), (134, 160679), (2747, 7838), (3919, 5494)]