20744636

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 41247360

約数和(自身を除く): 20502724

約数列:

[1, 2, 4, 11, 22, 44, 59, 61, 118, 122, 131, 236, 244, 262, 524, 649, 671, 1298, 1342, 1441, 2596, 2684, 2882, 3599, 5764, 7198, 7729, 7991, 14396, 15458, 15982, 30916, 31964, 39589, 79178, 85019, 87901, 158356, 170038, 175802, 340076, 351604, 471469, 942938, 1885876, 5186159, 10372318, 20744636]

約数ペア:

[(1, 20744636), (2, 10372318), (4, 5186159), (11, 1885876), (22, 942938), (44, 471469), (59, 351604), (61, 340076), (118, 175802), (122, 170038), (131, 158356), (236, 87901), (244, 85019), (262, 79178), (524, 39589), (649, 31964), (671, 30916), (1298, 15982), (1342, 15458), (1441, 14396), (2596, 7991), (2684, 7729), (2882, 7198), (3599, 5764)]