21839679

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{47581}}^1$

素因数の和:47607

約数の個数: 16

約数和(自身を含む): 34259040

約数和(自身を除く): 12419361

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 47581, 142743, 428229, 808877, 1284687, 2426631, 7279893, 21839679]

約数ペア:

[(1, 21839679), (3, 7279893), (9, 2426631), (17, 1284687), (27, 808877), (51, 428229), (153, 142743), (459, 47581)]