18990224

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{577}}^1$

素因数の和:624

約数の個数: 60

約数和(自身を含む): 42895692

約数和(自身を除く): 23905468

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 121, 136, 176, 187, 242, 272, 374, 484, 577, 748, 968, 1154, 1496, 1936, 2057, 2308, 2992, 4114, 4616, 6347, 8228, 9232, 9809, 12694, 16456, 19618, 25388, 32912, 39236, 50776, 69817, 78472, 101552, 107899, 139634, 156944, 215798, 279268, 431596, 558536, 863192, 1117072, 1186889, 1726384, 2373778, 4747556, 9495112, 18990224]

約数ペア:

[(1, 18990224), (2, 9495112), (4, 4747556), (8, 2373778), (11, 1726384), (16, 1186889), (17, 1117072), (22, 863192), (34, 558536), (44, 431596), (68, 279268), (88, 215798), (121, 156944), (136, 139634), (176, 107899), (187, 101552), (242, 78472), (272, 69817), (374, 50776), (484, 39236), (577, 32912), (748, 25388), (968, 19618), (1154, 16456), (1496, 12694), (1936, 9809), (2057, 9232), (2308, 8228), (2992, 6347), (4114, 4616)]