21309764

素因数分解:

$2^2\times 7^1\times {\mathrm{577}}^1\times {\mathrm{1319}}^1$

素因数の和:1907

約数の個数: 24

約数和(自身を含む): 42725760

約数和(自身を除く): 21415996

約数列:

[1, 2, 4, 7, 14, 28, 577, 1154, 1319, 2308, 2638, 4039, 5276, 8078, 9233, 16156, 18466, 36932, 761063, 1522126, 3044252, 5327441, 10654882, 21309764]

約数ペア:

[(1, 21309764), (2, 10654882), (4, 5327441), (7, 3044252), (14, 1522126), (28, 761063), (577, 36932), (1154, 18466), (1319, 16156), (2308, 9233), (2638, 8078), (4039, 5276)]