17420990

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{28559}}^1$

素因数の和:28627

約数の個数: 16

約数和(自身を含む): 31872960

約数和(自身を除く): 14451970

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 28559, 57118, 142795, 285590, 1742099, 3484198, 8710495, 17420990]

約数ペア:

[(1, 17420990), (2, 8710495), (5, 3484198), (10, 1742099), (61, 285590), (122, 142795), (305, 57118), (610, 28559)]