21459213

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{523}}^1$

素因数の和:673

約数の個数: 24

約数和(自身を含む): 32043648

約数和(自身を除く): 10584435

約数列:

[1, 3, 9, 47, 97, 141, 291, 423, 523, 873, 1569, 4559, 4707, 13677, 24581, 41031, 50731, 73743, 152193, 221229, 456579, 2384357, 7153071, 21459213]

約数ペア:

[(1, 21459213), (3, 7153071), (9, 2384357), (47, 456579), (97, 221229), (141, 152193), (291, 73743), (423, 50731), (523, 41031), (873, 24581), (1569, 13677), (4559, 4707)]