20706219

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{223}}^1$

素因数の和:432

約数の個数: 32

約数和(自身を含む): 32614400

約数和(自身を除く): 11908181

約数列:

[1, 3, 9, 19, 27, 57, 171, 181, 223, 513, 543, 669, 1629, 2007, 3439, 4237, 4887, 6021, 10317, 12711, 30951, 38133, 40363, 92853, 114399, 121089, 363267, 766897, 1089801, 2300691, 6902073, 20706219]

約数ペア:

[(1, 20706219), (3, 6902073), (9, 2300691), (19, 1089801), (27, 766897), (57, 363267), (171, 121089), (181, 114399), (223, 92853), (513, 40363), (543, 38133), (669, 30951), (1629, 12711), (2007, 10317), (3439, 6021), (4237, 4887)]