18991656

素因数分解:

$2^3\times 3^2\times {\mathrm{37}}^1\times {\mathrm{7129}}^1$

素因数の和:7178

約数の個数: 48

約数和(自身を含む): 52833300

約数和(自身を除く): 33841644

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 37, 72, 74, 111, 148, 222, 296, 333, 444, 666, 888, 1332, 2664, 7129, 14258, 21387, 28516, 42774, 57032, 64161, 85548, 128322, 171096, 256644, 263773, 513288, 527546, 791319, 1055092, 1582638, 2110184, 2373957, 3165276, 4747914, 6330552, 9495828, 18991656]

約数ペア:

[(1, 18991656), (2, 9495828), (3, 6330552), (4, 4747914), (6, 3165276), (8, 2373957), (9, 2110184), (12, 1582638), (18, 1055092), (24, 791319), (36, 527546), (37, 513288), (72, 263773), (74, 256644), (111, 171096), (148, 128322), (222, 85548), (296, 64161), (333, 57032), (444, 42774), (666, 28516), (888, 21387), (1332, 14258), (2664, 7129)]