21787990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{10733}}^1$

素因数の和:10776

約数の個数: 32

約数和(自身を含む): 46370880

約数和(自身を除く): 24582890

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 10733, 21466, 53665, 75131, 107330, 150262, 311257, 375655, 622514, 751310, 1556285, 2178799, 3112570, 4357598, 10893995, 21787990]

約数ペア:

[(1, 21787990), (2, 10893995), (5, 4357598), (7, 3112570), (10, 2178799), (14, 1556285), (29, 751310), (35, 622514), (58, 375655), (70, 311257), (145, 150262), (203, 107330), (290, 75131), (406, 53665), (1015, 21466), (2030, 10733)]