19964115

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{19289}}^1$

素因数の和:19323

約数の個数: 24

約数和(自身を含む): 36110880

約数和(自身を除く): 16146765

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 19289, 57867, 96445, 173601, 289335, 443647, 868005, 1330941, 2218235, 3992823, 6654705, 19964115]

約数ペア:

[(1, 19964115), (3, 6654705), (5, 3992823), (9, 2218235), (15, 1330941), (23, 868005), (45, 443647), (69, 289335), (115, 173601), (207, 96445), (345, 57867), (1035, 19289)]