21121136

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{24907}}^1$

素因数の和:24968

約数の個数: 20

約数和(自身を含む): 41695992

約数和(自身を除く): 20574856

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 24907, 49814, 99628, 199256, 398512, 1320071, 2640142, 5280284, 10560568, 21121136]

約数ペア:

[(1, 21121136), (2, 10560568), (4, 5280284), (8, 2640142), (16, 1320071), (53, 398512), (106, 199256), (212, 99628), (424, 49814), (848, 24907)]