19394991

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1$

素因数の和:537

約数の個数: 64

約数和(自身を含む): 37785600

約数和(自身を除く): 18390609

約数列:

[1, 3, 7, 9, 11, 19, 21, 27, 33, 57, 63, 77, 99, 133, 171, 189, 209, 231, 297, 399, 491, 513, 627, 693, 1197, 1463, 1473, 1881, 2079, 3437, 3591, 4389, 4419, 5401, 5643, 9329, 10311, 13167, 13257, 16203, 27987, 30933, 37807, 39501, 48609, 65303, 83961, 92799, 102619, 113421, 145827, 195909, 251883, 307857, 340263, 587727, 718333, 923571, 1020789, 1763181, 2154999, 2770713, 6464997, 19394991]

約数ペア:

[(1, 19394991), (3, 6464997), (7, 2770713), (9, 2154999), (11, 1763181), (19, 1020789), (21, 923571), (27, 718333), (33, 587727), (57, 340263), (63, 307857), (77, 251883), (99, 195909), (133, 145827), (171, 113421), (189, 102619), (209, 92799), (231, 83961), (297, 65303), (399, 48609), (491, 39501), (513, 37807), (627, 30933), (693, 27987), (1197, 16203), (1463, 13257), (1473, 13167), (1881, 10311), (2079, 9329), (3437, 5643), (3591, 5401), (4389, 4419)]