21143057

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{347}}^1$

素因数の和:512

約数の個数: 16

約数和(自身を含む): 23580480

約数和(自身を除く): 2437423

約数列:

[1, 13, 43, 109, 347, 559, 1417, 4511, 4687, 14921, 37823, 60931, 193973, 491699, 1626389, 21143057]

約数ペア:

[(1, 21143057), (13, 1626389), (43, 491699), (109, 193973), (347, 60931), (559, 37823), (1417, 14921), (4511, 4687)]