31579149

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1669}}^1$

素因数の和:1749

約数の個数: 32

約数和(自身を含む): 51943680

約数和(自身を除く): 20364531

約数列:

[1, 3, 7, 17, 21, 51, 53, 119, 159, 357, 371, 901, 1113, 1669, 2703, 5007, 6307, 11683, 18921, 28373, 35049, 85119, 88457, 198611, 265371, 595833, 619199, 1503769, 1857597, 4511307, 10526383, 31579149]

約数ペア:

[(1, 31579149), (3, 10526383), (7, 4511307), (17, 1857597), (21, 1503769), (51, 619199), (53, 595833), (119, 265371), (159, 198611), (357, 88457), (371, 85119), (901, 35049), (1113, 28373), (1669, 18921), (2703, 11683), (5007, 6307)]