21390768

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{21221}}^1$

素因数の和:21242

約数の個数: 60

約数和(自身を含む): 68419728

約数和(自身を除く): 47028960

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 144, 168, 252, 336, 504, 1008, 21221, 42442, 63663, 84884, 127326, 148547, 169768, 190989, 254652, 297094, 339536, 381978, 445641, 509304, 594188, 763956, 891282, 1018608, 1188376, 1336923, 1527912, 1782564, 2376752, 2673846, 3055824, 3565128, 5347692, 7130256, 10695384, 21390768]

約数ペア:

[(1, 21390768), (2, 10695384), (3, 7130256), (4, 5347692), (6, 3565128), (7, 3055824), (8, 2673846), (9, 2376752), (12, 1782564), (14, 1527912), (16, 1336923), (18, 1188376), (21, 1018608), (24, 891282), (28, 763956), (36, 594188), (42, 509304), (48, 445641), (56, 381978), (63, 339536), (72, 297094), (84, 254652), (112, 190989), (126, 169768), (144, 148547), (168, 127326), (252, 84884), (336, 63663), (504, 42442), (1008, 21221)]