21811515

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1973}}^1$

素因数の和:2059

約数の個数: 32

約数和(自身を含む): 38658816

約数和(自身を除く): 16847301

約数列:

[1, 3, 5, 11, 15, 33, 55, 67, 165, 201, 335, 737, 1005, 1973, 2211, 3685, 5919, 9865, 11055, 21703, 29595, 65109, 108515, 132191, 325545, 396573, 660955, 1454101, 1982865, 4362303, 7270505, 21811515]

約数ペア:

[(1, 21811515), (3, 7270505), (5, 4362303), (11, 1982865), (15, 1454101), (33, 660955), (55, 396573), (67, 325545), (165, 132191), (201, 108515), (335, 65109), (737, 29595), (1005, 21703), (1973, 11055), (2211, 9865), (3685, 5919)]