21232360

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1889}}^1$

素因数の和:2181

約数の個数: 32

約数和(自身を含む): 47968200

約数和(自身を除く): 26735840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 562, 1124, 1405, 1889, 2248, 2810, 3778, 5620, 7556, 9445, 11240, 15112, 18890, 37780, 75560, 530809, 1061618, 2123236, 2654045, 4246472, 5308090, 10616180, 21232360]

約数ペア:

[(1, 21232360), (2, 10616180), (4, 5308090), (5, 4246472), (8, 2654045), (10, 2123236), (20, 1061618), (40, 530809), (281, 75560), (562, 37780), (1124, 18890), (1405, 15112), (1889, 11240), (2248, 9445), (2810, 7556), (3778, 5620)]