81353985

素因数分解:

$3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{53699}}^1$

素因数の和:53808

約数の個数: 16

約数和(自身を含む): 131457600

約数和(自身を除く): 50103615

約数列:

[1, 3, 5, 15, 101, 303, 505, 1515, 53699, 161097, 268495, 805485, 5423599, 16270797, 27117995, 81353985]

約数ペア:

[(1, 81353985), (3, 27117995), (5, 16270797), (15, 5423599), (101, 805485), (303, 268495), (505, 161097), (1515, 53699)]