21551823

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{103}}^1\times {\mathrm{347}}^1$

素因数の和:523

約数の個数: 24

約数和(自身を含む): 31993728

約数和(自身を除く): 10441905

約数列:

[1, 3, 9, 67, 103, 201, 309, 347, 603, 927, 1041, 3123, 6901, 20703, 23249, 35741, 62109, 69747, 107223, 209241, 321669, 2394647, 7183941, 21551823]

約数ペア:

[(1, 21551823), (3, 7183941), (9, 2394647), (67, 321669), (103, 209241), (201, 107223), (309, 69747), (347, 62109), (603, 35741), (927, 23249), (1041, 20703), (3123, 6901)]