21947175

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{4241}}^1$

素因数の和:4280

約数の個数: 36

約数和(自身を含む): 41028624

約数和(自身を除く): 19081449

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 207, 225, 345, 575, 1035, 1725, 4241, 5175, 12723, 21205, 38169, 63615, 97543, 106025, 190845, 292629, 318075, 487715, 877887, 954225, 1463145, 2438575, 4389435, 7315725, 21947175]

約数ペア:

[(1, 21947175), (3, 7315725), (5, 4389435), (9, 2438575), (15, 1463145), (23, 954225), (25, 877887), (45, 487715), (69, 318075), (75, 292629), (115, 190845), (207, 106025), (225, 97543), (345, 63615), (575, 38169), (1035, 21205), (1725, 12723), (4241, 5175)]