18384597

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:303

約数の個数: 64

約数和(自身を含む): 35020800

約数和(自身を除く): 16636203

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 37, 63, 77, 99, 111, 189, 231, 239, 259, 297, 333, 407, 693, 717, 777, 999, 1221, 1673, 2079, 2151, 2331, 2629, 2849, 3663, 5019, 6453, 6993, 7887, 8547, 8843, 10989, 15057, 18403, 23661, 25641, 26529, 45171, 55209, 61901, 70983, 76923, 79587, 97273, 165627, 185703, 238761, 291819, 496881, 557109, 680911, 875457, 1671327, 2042733, 2626371, 6128199, 18384597]

約数ペア:

[(1, 18384597), (3, 6128199), (7, 2626371), (9, 2042733), (11, 1671327), (21, 875457), (27, 680911), (33, 557109), (37, 496881), (63, 291819), (77, 238761), (99, 185703), (111, 165627), (189, 97273), (231, 79587), (239, 76923), (259, 70983), (297, 61901), (333, 55209), (407, 45171), (693, 26529), (717, 25641), (777, 23661), (999, 18403), (1221, 15057), (1673, 10989), (2079, 8843), (2151, 8547), (2331, 7887), (2629, 6993), (2849, 6453), (3663, 5019)]