21380688

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{21211}}^1$

素因数の和:21232

約数の個数: 60

約数和(自身を含む): 68387488

約数和(自身を除く): 47006800

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, 21211, 42422, 63633, 84844, 127266, 148477, 169688, 190899, 254532, 296954, 339376, 381798, 445431, 509064, 593908, 763596, 890862, 1018128, 1187816, 1336293, 1527192, 1781724, 2375632, 2672586, 3054384, 3563448, 5345172, 7126896, 10690344, 21380688]

約数ペア:

[(1, 21380688), (2, 10690344), (3, 7126896), (4, 5345172), (6, 3563448), (7, 3054384), (8, 2672586), (9, 2375632), (12, 1781724), (14, 1527192), (16, 1336293), (18, 1187816), (21, 1018128), (24, 890862), (28, 763596), (36, 593908), (42, 509064), (48, 445431), (56, 381798), (63, 339376), (72, 296954), (84, 254532), (112, 190899), (126, 169688), (144, 148477), (168, 127266), (252, 84844), (336, 63633), (504, 42422), (1008, 21211)]