21908748

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{313}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 54158720

約数和(自身を除く): 32249972

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228, 307, 313, 614, 626, 921, 939, 1228, 1252, 1842, 1878, 3684, 3756, 5833, 5947, 11666, 11894, 17499, 17841, 23332, 23788, 34998, 35682, 69996, 71364, 96091, 192182, 288273, 384364, 576546, 1153092, 1825729, 3651458, 5477187, 7302916, 10954374, 21908748]

約数ペア:

[(1, 21908748), (2, 10954374), (3, 7302916), (4, 5477187), (6, 3651458), (12, 1825729), (19, 1153092), (38, 576546), (57, 384364), (76, 288273), (114, 192182), (228, 96091), (307, 71364), (313, 69996), (614, 35682), (626, 34998), (921, 23788), (939, 23332), (1228, 17841), (1252, 17499), (1842, 11894), (1878, 11666), (3684, 5947), (3756, 5833)]