21075693

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{7867}}^1$

素因数の和:7936

約数の個数: 16

約数和(自身を含む): 30213120

約数和(自身を除く): 9137427

約数列:

[1, 3, 19, 47, 57, 141, 893, 2679, 7867, 23601, 149473, 369749, 448419, 1109247, 7025231, 21075693]

約数ペア:

[(1, 21075693), (3, 7025231), (19, 1109247), (47, 448419), (57, 369749), (141, 149473), (893, 23601), (2679, 7867)]