21297507

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13171}}^1$

素因数の和:13199

約数の個数: 24

約数和(自身を含む): 36038592

約数和(自身を除く): 14741085

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 13171, 39513, 92197, 144881, 276591, 434643, 645379, 1014167, 1936137, 3042501, 7099169, 21297507]

約数ペア:

[(1, 21297507), (3, 7099169), (7, 3042501), (11, 1936137), (21, 1014167), (33, 645379), (49, 434643), (77, 276591), (147, 144881), (231, 92197), (539, 39513), (1617, 13171)]