19799865

素因数分解:

$3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{2953}}^1$

素因数の和:3113

約数の個数: 24

約数和(自身を含む): 34561800

約数和(自身を除く): 14761935

約数列:

[1, 3, 5, 9, 15, 45, 149, 447, 745, 1341, 2235, 2953, 6705, 8859, 14765, 26577, 44295, 132885, 439997, 1319991, 2199985, 3959973, 6599955, 19799865]

約数ペア:

[(1, 19799865), (3, 6599955), (5, 3959973), (9, 2199985), (15, 1319991), (45, 439997), (149, 132885), (447, 44295), (745, 26577), (1341, 14765), (2235, 8859), (2953, 6705)]