21953368

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{66931}}^1$

素因数の和:66978

約数の個数: 16

約数和(自身を含む): 42167160

約数和(自身を除く): 20213792

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 66931, 133862, 267724, 535448, 2744171, 5488342, 10976684, 21953368]

約数ペア:

[(1, 21953368), (2, 10976684), (4, 5488342), (8, 2744171), (41, 535448), (82, 267724), (164, 133862), (328, 66931)]