21130142

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{223}}^1$

素因数の和:368

約数の個数: 32

約数和(自身を含む): 35804160

約数和(自身を除く): 14674018

約数列:

[1, 2, 11, 22, 59, 73, 118, 146, 223, 446, 649, 803, 1298, 1606, 2453, 4307, 4906, 8614, 13157, 16279, 26314, 32558, 47377, 94754, 144727, 179069, 289454, 358138, 960461, 1920922, 10565071, 21130142]

約数ペア:

[(1, 21130142), (2, 10565071), (11, 1920922), (22, 960461), (59, 358138), (73, 289454), (118, 179069), (146, 144727), (223, 94754), (446, 47377), (649, 32558), (803, 26314), (1298, 16279), (1606, 13157), (2453, 8614), (4307, 4906)]