18923212

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:227

約数の個数: 72

約数和(自身を含む): 42977088

約数和(自身を除く): 24053876

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 67, 77, 98, 131, 134, 154, 196, 262, 268, 308, 469, 524, 539, 737, 917, 938, 1078, 1441, 1474, 1834, 1876, 2156, 2882, 2948, 3283, 3668, 5159, 5764, 6419, 6566, 8777, 10087, 10318, 12838, 13132, 17554, 20174, 20636, 25676, 35108, 36113, 40348, 61439, 70609, 72226, 96547, 122878, 141218, 144452, 193094, 245756, 282436, 386188, 430073, 675829, 860146, 1351658, 1720292, 2703316, 4730803, 9461606, 18923212]

約数ペア:

[(1, 18923212), (2, 9461606), (4, 4730803), (7, 2703316), (11, 1720292), (14, 1351658), (22, 860146), (28, 675829), (44, 430073), (49, 386188), (67, 282436), (77, 245756), (98, 193094), (131, 144452), (134, 141218), (154, 122878), (196, 96547), (262, 72226), (268, 70609), (308, 61439), (469, 40348), (524, 36113), (539, 35108), (737, 25676), (917, 20636), (938, 20174), (1078, 17554), (1441, 13132), (1474, 12838), (1834, 10318), (1876, 10087), (2156, 8777), (2882, 6566), (2948, 6419), (3283, 5764), (3668, 5159)]