389993667

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{3797}}^1$

素因数の和:3947

約数の個数: 32

約数和(自身を含む): 611569152

約数和(自身を除く): 221575485

約数列:

[1, 3, 7, 21, 67, 73, 201, 219, 469, 511, 1407, 1533, 3797, 4891, 11391, 14673, 26579, 34237, 79737, 102711, 254399, 277181, 763197, 831543, 1780793, 1940267, 5342379, 5820801, 18571127, 55713381, 129997889, 389993667]

約数ペア:

[(1, 389993667), (3, 129997889), (7, 55713381), (21, 18571127), (67, 5820801), (73, 5342379), (201, 1940267), (219, 1780793), (469, 831543), (511, 763197), (1407, 277181), (1533, 254399), (3797, 102711), (4891, 79737), (11391, 34237), (14673, 26579)]