21000343371

素因数分解:

$3^1\times 7^1\times {\mathrm{3547}}^1\times {\mathrm{281933}}^1$

素因数の和:285490

約数の個数: 16

約数和(自身を含む): 32009658624

約数和(自身を除く): 11009315253

約数列:

[1, 3, 7, 21, 3547, 10641, 24829, 74487, 281933, 845799, 1973531, 5920593, 1000016351, 3000049053, 7000114457, 21000343371]

約数ペア:

[(1, 21000343371), (3, 7000114457), (7, 3000049053), (21, 1000016351), (3547, 5920593), (10641, 1973531), (24829, 845799), (74487, 281933)]