21511954

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{8069}}^1$

素因数の和:8145

約数の個数: 16

約数和(自身を含む): 34087680

約数和(自身を除く): 12575726

約数列:

[1, 2, 31, 43, 62, 86, 1333, 2666, 8069, 16138, 250139, 346967, 500278, 693934, 10755977, 21511954]

約数ペア:

[(1, 21511954), (2, 10755977), (31, 693934), (43, 500278), (62, 346967), (86, 250139), (1333, 16138), (2666, 8069)]