19712590

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{63589}}^1$

素因数の和:63627

約数の個数: 16

約数和(自身を含む): 36627840

約数和(自身を除く): 16915250

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 63589, 127178, 317945, 635890, 1971259, 3942518, 9856295, 19712590]

約数ペア:

[(1, 19712590), (2, 9856295), (5, 3942518), (10, 1971259), (31, 635890), (62, 317945), (155, 127178), (310, 63589)]