21095361

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{8167}}^1$

素因数の和:8221

約数の個数: 24

約数和(自身を含む): 35677824

約数和(自身を除く): 14582463

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 8167, 24501, 57169, 73503, 171507, 334847, 514521, 1004541, 2343929, 3013623, 7031787, 21095361]

約数ペア:

[(1, 21095361), (3, 7031787), (7, 3013623), (9, 2343929), (21, 1004541), (41, 514521), (63, 334847), (123, 171507), (287, 73503), (369, 57169), (861, 24501), (2583, 8167)]