21517772

素因数分解:

$2^2\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{1249}}^1$

素因数の和:1385

約数の個数: 24

約数和(自身を含む): 38850000

約数和(自身を除く): 17332228

約数列:

[1, 2, 4, 59, 73, 118, 146, 236, 292, 1249, 2498, 4307, 4996, 8614, 17228, 73691, 91177, 147382, 182354, 294764, 364708, 5379443, 10758886, 21517772]

約数ペア:

[(1, 21517772), (2, 10758886), (4, 5379443), (59, 364708), (73, 294764), (118, 182354), (146, 147382), (236, 91177), (292, 73691), (1249, 17228), (2498, 8614), (4307, 4996)]