1640672013

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{211891}}^1$

素因数の和:212012

約数の個数: 16

約数和(自身を含む): 2288433600

約数和(自身を除く): 647761587

約数列:

[1, 3, 29, 87, 89, 267, 2581, 7743, 211891, 635673, 6144839, 18434517, 18858299, 56574897, 546890671, 1640672013]

約数ペア:

[(1, 1640672013), (3, 546890671), (29, 56574897), (87, 18858299), (89, 18434517), (267, 6144839), (2581, 635673), (7743, 211891)]