21297484

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{487}}^1$

素因数の和:562

約数の個数: 36

約数和(自身を含む): 41654704

約数和(自身を除く): 20357220

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 116, 377, 487, 754, 841, 974, 1508, 1682, 1948, 3364, 6331, 10933, 12662, 14123, 21866, 25324, 28246, 43732, 56492, 183599, 367198, 409567, 734396, 819134, 1638268, 5324371, 10648742, 21297484]

約数ペア:

[(1, 21297484), (2, 10648742), (4, 5324371), (13, 1638268), (26, 819134), (29, 734396), (52, 409567), (58, 367198), (116, 183599), (377, 56492), (487, 43732), (754, 28246), (841, 25324), (974, 21866), (1508, 14123), (1682, 12662), (1948, 10933), (3364, 6331)]