17949965

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1$

素因数の和:317

約数の個数: 32

約数和(自身を含む): 25142400

約数和(自身を除く): 7192435

約数列:

[1, 5, 11, 19, 55, 89, 95, 193, 209, 445, 965, 979, 1045, 1691, 2123, 3667, 4895, 8455, 10615, 17177, 18335, 18601, 40337, 85885, 93005, 188947, 201685, 326363, 944735, 1631815, 3589993, 17949965]

約数ペア:

[(1, 17949965), (5, 3589993), (11, 1631815), (19, 944735), (55, 326363), (89, 201685), (95, 188947), (193, 93005), (209, 85885), (445, 40337), (965, 18601), (979, 18335), (1045, 17177), (1691, 10615), (2123, 8455), (3667, 4895)]