21757197

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{971}}^1$

素因数の和:1089

約数の個数: 32

約数和(自身を含む): 36578304

約数和(自身を除く): 14821107

約数列:

[1, 3, 7, 11, 21, 33, 77, 97, 231, 291, 679, 971, 1067, 2037, 2913, 3201, 6797, 7469, 10681, 20391, 22407, 32043, 74767, 94187, 224301, 282561, 659309, 1036057, 1977927, 3108171, 7252399, 21757197]

約数ペア:

[(1, 21757197), (3, 7252399), (7, 3108171), (11, 1977927), (21, 1036057), (33, 659309), (77, 282561), (97, 224301), (231, 94187), (291, 74767), (679, 32043), (971, 22407), (1067, 20391), (2037, 10681), (2913, 7469), (3201, 6797)]