18825928

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:218

約数の個数: 64

約数和(自身を含む): 40734720

約数和(自身を除く): 21908792

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 62, 67, 88, 103, 124, 134, 206, 248, 268, 341, 412, 536, 682, 737, 824, 1133, 1364, 1474, 2077, 2266, 2728, 2948, 3193, 4154, 4532, 5896, 6386, 6901, 8308, 9064, 12772, 13802, 16616, 22847, 25544, 27604, 35123, 45694, 55208, 70246, 75911, 91388, 140492, 151822, 182776, 213931, 280984, 303644, 427862, 607288, 855724, 1711448, 2353241, 4706482, 9412964, 18825928]

約数ペア:

[(1, 18825928), (2, 9412964), (4, 4706482), (8, 2353241), (11, 1711448), (22, 855724), (31, 607288), (44, 427862), (62, 303644), (67, 280984), (88, 213931), (103, 182776), (124, 151822), (134, 140492), (206, 91388), (248, 75911), (268, 70246), (341, 55208), (412, 45694), (536, 35123), (682, 27604), (737, 25544), (824, 22847), (1133, 16616), (1364, 13802), (1474, 12772), (2077, 9064), (2266, 8308), (2728, 6901), (2948, 6386), (3193, 5896), (4154, 4532)]