19794789

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{719}}^1$

素因数の和:774

約数の個数: 48

約数和(自身を含む): 35942400

約数和(自身を除く): 16147611

約数列:

[1, 3, 7, 9, 19, 21, 23, 57, 63, 69, 133, 161, 171, 207, 399, 437, 483, 719, 1197, 1311, 1449, 2157, 3059, 3933, 5033, 6471, 9177, 13661, 15099, 16537, 27531, 40983, 45297, 49611, 95627, 115759, 122949, 148833, 286881, 314203, 347277, 860643, 942609, 1041831, 2199421, 2827827, 6598263, 19794789]

約数ペア:

[(1, 19794789), (3, 6598263), (7, 2827827), (9, 2199421), (19, 1041831), (21, 942609), (23, 860643), (57, 347277), (63, 314203), (69, 286881), (133, 148833), (161, 122949), (171, 115759), (207, 95627), (399, 49611), (437, 45297), (483, 40983), (719, 27531), (1197, 16537), (1311, 15099), (1449, 13661), (2157, 9177), (3059, 6471), (3933, 5033)]