21903656

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{144103}}^1$

素因数の和:144128

約数の個数: 16

約数和(自身を含む): 43231200

約数和(自身を除く): 21327544

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 144103, 288206, 576412, 1152824, 2737957, 5475914, 10951828, 21903656]

約数ペア:

[(1, 21903656), (2, 10951828), (4, 5475914), (8, 2737957), (19, 1152824), (38, 576412), (76, 288206), (152, 144103)]