21345892

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{7591}}^1$

素因数の和:7651

約数の個数: 24

約数和(自身を含む): 40389440

約数和(自身を除く): 19043548

約数列:

[1, 2, 4, 19, 37, 38, 74, 76, 148, 703, 1406, 2812, 7591, 15182, 30364, 144229, 280867, 288458, 561734, 576916, 1123468, 5336473, 10672946, 21345892]

約数ペア:

[(1, 21345892), (2, 10672946), (4, 5336473), (19, 1123468), (37, 576916), (38, 561734), (74, 288458), (76, 280867), (148, 144229), (703, 30364), (1406, 15182), (2812, 7591)]