21350090

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{887}}^1$

素因数の和:1006

約数の個数: 32

約数和(自身を含む): 40279680

約数和(自身を除く): 18929590

約数列:

[1, 2, 5, 10, 29, 58, 83, 145, 166, 290, 415, 830, 887, 1774, 2407, 4435, 4814, 8870, 12035, 24070, 25723, 51446, 73621, 128615, 147242, 257230, 368105, 736210, 2135009, 4270018, 10675045, 21350090]

約数ペア:

[(1, 21350090), (2, 10675045), (5, 4270018), (10, 2135009), (29, 736210), (58, 368105), (83, 257230), (145, 147242), (166, 128615), (290, 73621), (415, 51446), (830, 25723), (887, 24070), (1774, 12035), (2407, 8870), (4435, 4814)]