21401506

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{28843}}^1$

素因数の和:28905

約数の個数: 16

約数和(自身を含む): 37381824

約数和(自身を除く): 15980318

約数列:

[1, 2, 7, 14, 53, 106, 371, 742, 28843, 57686, 201901, 403802, 1528679, 3057358, 10700753, 21401506]

約数ペア:

[(1, 21401506), (2, 10700753), (7, 3057358), (14, 1528679), (53, 403802), (106, 201901), (371, 57686), (742, 28843)]