21994413

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61609}}^1$

素因数の和:61636

約数の個数: 16

約数和(自身を含む): 35487360

約数和(自身を除く): 13492947

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 61609, 184827, 431263, 1047353, 1293789, 3142059, 7331471, 21994413]

約数ペア:

[(1, 21994413), (3, 7331471), (7, 3142059), (17, 1293789), (21, 1047353), (51, 431263), (119, 184827), (357, 61609)]