21055479

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1$

素因数の和:311

約数の個数: 32

約数和(自身を含む): 30935040

約数和(自身を除く): 9879561

約数列:

[1, 3, 29, 31, 37, 87, 93, 111, 211, 633, 899, 1073, 1147, 2697, 3219, 3441, 6119, 6541, 7807, 18357, 19623, 23421, 33263, 99789, 189689, 226403, 242017, 569067, 679209, 726051, 7018493, 21055479]

約数ペア:

[(1, 21055479), (3, 7018493), (29, 726051), (31, 679209), (37, 569067), (87, 242017), (93, 226403), (111, 189689), (211, 99789), (633, 33263), (899, 23421), (1073, 19623), (1147, 18357), (2697, 7807), (3219, 6541), (3441, 6119)]