21478730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23603}}^1$

素因数の和:23630

約数の個数: 32

約数和(自身を含む): 47585664

約数和(自身を除く): 26106934

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 23603, 47206, 118015, 165221, 236030, 306839, 330442, 613678, 826105, 1534195, 1652210, 2147873, 3068390, 4295746, 10739365, 21478730]

約数ペア:

[(1, 21478730), (2, 10739365), (5, 4295746), (7, 3068390), (10, 2147873), (13, 1652210), (14, 1534195), (26, 826105), (35, 613678), (65, 330442), (70, 306839), (91, 236030), (130, 165221), (182, 118015), (455, 47206), (910, 23603)]