18739408

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:331

約数の個数: 40

約数和(自身を含む): 37372608

約数和(自身を除く): 18633200

約数列:

[1, 2, 4, 8, 16, 83, 103, 137, 166, 206, 274, 332, 412, 548, 664, 824, 1096, 1328, 1648, 2192, 8549, 11371, 14111, 17098, 22742, 28222, 34196, 45484, 56444, 68392, 90968, 112888, 136784, 181936, 225776, 1171213, 2342426, 4684852, 9369704, 18739408]

約数ペア:

[(1, 18739408), (2, 9369704), (4, 4684852), (8, 2342426), (16, 1171213), (83, 225776), (103, 181936), (137, 136784), (166, 112888), (206, 90968), (274, 68392), (332, 56444), (412, 45484), (548, 34196), (664, 28222), (824, 22742), (1096, 17098), (1328, 14111), (1648, 11371), (2192, 8549)]