19739727

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:297

約数の個数: 64

約数和(自身を含む): 36864000

約数和(自身を除く): 17124273

約数列:

[1, 3, 7, 9, 19, 21, 23, 27, 57, 63, 69, 133, 161, 171, 189, 207, 239, 399, 437, 483, 513, 621, 717, 1197, 1311, 1449, 1673, 2151, 3059, 3591, 3933, 4347, 4541, 5019, 5497, 6453, 9177, 11799, 13623, 15057, 16491, 27531, 31787, 38479, 40869, 45171, 49473, 82593, 95361, 104443, 115437, 122607, 148419, 286083, 313329, 346311, 731101, 858249, 939987, 1038933, 2193303, 2819961, 6579909, 19739727]

約数ペア:

[(1, 19739727), (3, 6579909), (7, 2819961), (9, 2193303), (19, 1038933), (21, 939987), (23, 858249), (27, 731101), (57, 346311), (63, 313329), (69, 286083), (133, 148419), (161, 122607), (171, 115437), (189, 104443), (207, 95361), (239, 82593), (399, 49473), (437, 45171), (483, 40869), (513, 38479), (621, 31787), (717, 27531), (1197, 16491), (1311, 15057), (1449, 13623), (1673, 11799), (2151, 9177), (3059, 6453), (3591, 5497), (3933, 5019), (4347, 4541)]