21259242

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^2\times {\mathrm{1229}}^1$

素因数の和:1299

約数の個数: 36

約数和(自身を含む): 47634210

約数和(自身を除く): 26374968

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558, 961, 1229, 1922, 2458, 2883, 3687, 5766, 7374, 8649, 11061, 17298, 22122, 38099, 76198, 114297, 228594, 342891, 685782, 1181069, 2362138, 3543207, 7086414, 10629621, 21259242]

約数ペア:

[(1, 21259242), (2, 10629621), (3, 7086414), (6, 3543207), (9, 2362138), (18, 1181069), (31, 685782), (62, 342891), (93, 228594), (186, 114297), (279, 76198), (558, 38099), (961, 22122), (1229, 17298), (1922, 11061), (2458, 8649), (2883, 7374), (3687, 5766)]