21720384

素因数分解:

$2^6\times 3^2\times 7^1\times {\mathrm{5387}}^1$

素因数の和:5412

約数の個数: 84

約数和(自身を含む): 71164704

約数和(自身を除く): 49444320

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 64, 72, 84, 96, 112, 126, 144, 168, 192, 224, 252, 288, 336, 448, 504, 576, 672, 1008, 1344, 2016, 4032, 5387, 10774, 16161, 21548, 32322, 37709, 43096, 48483, 64644, 75418, 86192, 96966, 113127, 129288, 150836, 172384, 193932, 226254, 258576, 301672, 339381, 344768, 387864, 452508, 517152, 603344, 678762, 775728, 905016, 1034304, 1206688, 1357524, 1551456, 1810032, 2413376, 2715048, 3102912, 3620064, 5430096, 7240128, 10860192, 21720384]

約数ペア:

[(1, 21720384), (2, 10860192), (3, 7240128), (4, 5430096), (6, 3620064), (7, 3102912), (8, 2715048), (9, 2413376), (12, 1810032), (14, 1551456), (16, 1357524), (18, 1206688), (21, 1034304), (24, 905016), (28, 775728), (32, 678762), (36, 603344), (42, 517152), (48, 452508), (56, 387864), (63, 344768), (64, 339381), (72, 301672), (84, 258576), (96, 226254), (112, 193932), (126, 172384), (144, 150836), (168, 129288), (192, 113127), (224, 96966), (252, 86192), (288, 75418), (336, 64644), (448, 48483), (504, 43096), (576, 37709), (672, 32322), (1008, 21548), (1344, 16161), (2016, 10774), (4032, 5387)]