21731852

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{619}}^1$

素因数の和:821

約数の個数: 24

約数和(自身を含む): 38955840

約数和(自身を除く): 17223988

約数列:

[1, 2, 4, 67, 131, 134, 262, 268, 524, 619, 1238, 2476, 8777, 17554, 35108, 41473, 81089, 82946, 162178, 165892, 324356, 5432963, 10865926, 21731852]

約数ペア:

[(1, 21731852), (2, 10865926), (4, 5432963), (67, 324356), (131, 165892), (134, 162178), (262, 82946), (268, 81089), (524, 41473), (619, 35108), (1238, 17554), (2476, 8777)]