21053316

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{40801}}^1$

素因数の和:40851

約数の個数: 24

約数和(自身を含む): 50268064

約数和(自身を除く): 29214748

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 40801, 81602, 122403, 163204, 244806, 489612, 1754443, 3508886, 5263329, 7017772, 10526658, 21053316]

約数ペア:

[(1, 21053316), (2, 10526658), (3, 7017772), (4, 5263329), (6, 3508886), (12, 1754443), (43, 489612), (86, 244806), (129, 163204), (172, 122403), (258, 81602), (516, 40801)]