21902668

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{7789}}^1$

素因数の和:7849

約数の個数: 24

約数和(自身を含む): 41442800

約数和(自身を除く): 19540132

約数列:

[1, 2, 4, 19, 37, 38, 74, 76, 148, 703, 1406, 2812, 7789, 15578, 31156, 147991, 288193, 295982, 576386, 591964, 1152772, 5475667, 10951334, 21902668]

約数ペア:

[(1, 21902668), (2, 10951334), (4, 5475667), (19, 1152772), (37, 591964), (38, 576386), (74, 295982), (76, 288193), (148, 147991), (703, 31156), (1406, 15578), (2812, 7789)]