21865532

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{569}}^1\times {\mathrm{739}}^1$

素因数の和:1325

約数の個数: 24

約数和(自身を含む): 41336400

約数和(自身を除く): 19470868

約数列:

[1, 2, 4, 13, 26, 52, 569, 739, 1138, 1478, 2276, 2956, 7397, 9607, 14794, 19214, 29588, 38428, 420491, 840982, 1681964, 5466383, 10932766, 21865532]

約数ペア:

[(1, 21865532), (2, 10932766), (4, 5466383), (13, 1681964), (26, 840982), (52, 420491), (569, 38428), (739, 29588), (1138, 19214), (1478, 14794), (2276, 9607), (2956, 7397)]