19668974

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{241}}^1$

素因数の和:372

約数の個数: 32

約数和(自身を含む): 33093984

約数和(自身を除く): 13425010

約数列:

[1, 2, 13, 26, 43, 73, 86, 146, 241, 482, 559, 949, 1118, 1898, 3133, 3139, 6266, 6278, 10363, 17593, 20726, 35186, 40807, 81614, 134719, 228709, 269438, 457418, 756499, 1512998, 9834487, 19668974]

約数ペア:

[(1, 19668974), (2, 9834487), (13, 1512998), (26, 756499), (43, 457418), (73, 269438), (86, 228709), (146, 134719), (241, 81614), (482, 40807), (559, 35186), (949, 20726), (1118, 17593), (1898, 10363), (3133, 6278), (3139, 6266)]