21728238

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{271}}^1$

素因数の和:389

約数の個数: 64

約数和(自身を含む): 52641792

約数和(自身を除く): 30913554

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 69, 83, 138, 161, 166, 249, 271, 322, 483, 498, 542, 581, 813, 966, 1162, 1626, 1743, 1897, 1909, 3486, 3794, 3818, 5691, 5727, 6233, 11382, 11454, 12466, 13363, 18699, 22493, 26726, 37398, 40089, 43631, 44986, 67479, 80178, 87262, 130893, 134958, 157451, 261786, 314902, 472353, 517339, 944706, 1034678, 1552017, 3104034, 3621373, 7242746, 10864119, 21728238]

約数ペア:

[(1, 21728238), (2, 10864119), (3, 7242746), (6, 3621373), (7, 3104034), (14, 1552017), (21, 1034678), (23, 944706), (42, 517339), (46, 472353), (69, 314902), (83, 261786), (138, 157451), (161, 134958), (166, 130893), (249, 87262), (271, 80178), (322, 67479), (483, 44986), (498, 43631), (542, 40089), (581, 37398), (813, 26726), (966, 22493), (1162, 18699), (1626, 13363), (1743, 12466), (1897, 11454), (1909, 11382), (3486, 6233), (3794, 5727), (3818, 5691)]