19961116

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{281}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 41690880

約数和(自身を除く): 21729764

約数列:

[1, 2, 4, 7, 14, 28, 43, 59, 86, 118, 172, 236, 281, 301, 413, 562, 602, 826, 1124, 1204, 1652, 1967, 2537, 3934, 5074, 7868, 10148, 12083, 16579, 17759, 24166, 33158, 35518, 48332, 66316, 71036, 84581, 116053, 169162, 232106, 338324, 464212, 712897, 1425794, 2851588, 4990279, 9980558, 19961116]

約数ペア:

[(1, 19961116), (2, 9980558), (4, 4990279), (7, 2851588), (14, 1425794), (28, 712897), (43, 464212), (59, 338324), (86, 232106), (118, 169162), (172, 116053), (236, 84581), (281, 71036), (301, 66316), (413, 48332), (562, 35518), (602, 33158), (826, 24166), (1124, 17759), (1204, 16579), (1652, 12083), (1967, 10148), (2537, 7868), (3934, 5074)]