20895015

素因数分解:

$3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{9349}}^1$

素因数の和:9506

約数の個数: 16

約数和(自身を含む): 33660000

約数和(自身を除く): 12764985

約数列:

[1, 3, 5, 15, 149, 447, 745, 2235, 9349, 28047, 46745, 140235, 1393001, 4179003, 6965005, 20895015]

約数ペア:

[(1, 20895015), (3, 6965005), (5, 4179003), (15, 1393001), (149, 140235), (447, 46745), (745, 28047), (2235, 9349)]