28322217

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1$

素因数の和:288

約数の個数: 80

約数和(自身を含む): 55756800

約数和(自身を除く): 27434583

約数列:

[1, 3, 7, 9, 11, 19, 21, 27, 33, 57, 63, 77, 81, 99, 133, 171, 189, 209, 231, 239, 297, 399, 513, 567, 627, 693, 717, 891, 1197, 1463, 1539, 1673, 1881, 2079, 2151, 2629, 3591, 4389, 4541, 5019, 5643, 6237, 6453, 7887, 10773, 13167, 13623, 15057, 16929, 18403, 19359, 23661, 31787, 39501, 40869, 45171, 49951, 55209, 70983, 95361, 118503, 122607, 135513, 149853, 165627, 212949, 286083, 349657, 367821, 449559, 496881, 858249, 1048971, 1348677, 1490643, 2574747, 3146913, 4046031, 9440739, 28322217]

約数ペア:

[(1, 28322217), (3, 9440739), (7, 4046031), (9, 3146913), (11, 2574747), (19, 1490643), (21, 1348677), (27, 1048971), (33, 858249), (57, 496881), (63, 449559), (77, 367821), (81, 349657), (99, 286083), (133, 212949), (171, 165627), (189, 149853), (209, 135513), (231, 122607), (239, 118503), (297, 95361), (399, 70983), (513, 55209), (567, 49951), (627, 45171), (693, 40869), (717, 39501), (891, 31787), (1197, 23661), (1463, 19359), (1539, 18403), (1673, 16929), (1881, 15057), (2079, 13623), (2151, 13167), (2629, 10773), (3591, 7887), (4389, 6453), (4541, 6237), (5019, 5643)]