31978412

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{2089}}^1$

素因数の和:2225

約数の個数: 24

約数和(自身を含む): 57934800

約数和(自身を除く): 25956388

約数列:

[1, 2, 4, 43, 86, 89, 172, 178, 356, 2089, 3827, 4178, 7654, 8356, 15308, 89827, 179654, 185921, 359308, 371842, 743684, 7994603, 15989206, 31978412]

約数ペア:

[(1, 31978412), (2, 15989206), (4, 7994603), (43, 743684), (86, 371842), (89, 359308), (172, 185921), (178, 179654), (356, 89827), (2089, 15308), (3827, 8356), (4178, 7654)]