13725428

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{401}}^1$

素因数の和:647

約数の個数: 24

約数和(自身を含む): 24763200

約数和(自身を除く): 11037772

約数列:

[1, 2, 4, 43, 86, 172, 199, 398, 401, 796, 802, 1604, 8557, 17114, 17243, 34228, 34486, 68972, 79799, 159598, 319196, 3431357, 6862714, 13725428]

約数ペア:

[(1, 13725428), (2, 6862714), (4, 3431357), (43, 319196), (86, 159598), (172, 79799), (199, 68972), (398, 34486), (401, 34228), (796, 17243), (802, 17114), (1604, 8557)]