21360816

素因数分解:

$2^4\times 3^2\times {\mathrm{148339}}^1$

素因数の和:148353

約数の個数: 30

約数和(自身を含む): 59781020

約数和(自身を除く): 38420204

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 148339, 296678, 445017, 593356, 890034, 1186712, 1335051, 1780068, 2373424, 2670102, 3560136, 5340204, 7120272, 10680408, 21360816]

約数ペア:

[(1, 21360816), (2, 10680408), (3, 7120272), (4, 5340204), (6, 3560136), (8, 2670102), (9, 2373424), (12, 1780068), (16, 1335051), (18, 1186712), (24, 890034), (36, 593356), (48, 445017), (72, 296678), (144, 148339)]