21788388

素因数分解:

$2^2\times 3^2\times {\mathrm{605233}}^1$

素因数の和:605243

約数の個数: 18

約数和(自身を含む): 55076294

約数和(自身を除く): 33287906

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 605233, 1210466, 1815699, 2420932, 3631398, 5447097, 7262796, 10894194, 21788388]

約数ペア:

[(1, 21788388), (2, 10894194), (3, 7262796), (4, 5447097), (6, 3631398), (9, 2420932), (12, 1815699), (18, 1210466), (36, 605233)]