21729456

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{21557}}^1$

素因数の和:21578

約数の個数: 60

約数和(自身を含む): 69502992

約数和(自身を除く): 47773536

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, 21557, 43114, 64671, 86228, 129342, 150899, 172456, 194013, 258684, 301798, 344912, 388026, 452697, 517368, 603596, 776052, 905394, 1034736, 1207192, 1358091, 1552104, 1810788, 2414384, 2716182, 3104208, 3621576, 5432364, 7243152, 10864728, 21729456]

約数ペア:

[(1, 21729456), (2, 10864728), (3, 7243152), (4, 5432364), (6, 3621576), (7, 3104208), (8, 2716182), (9, 2414384), (12, 1810788), (14, 1552104), (16, 1358091), (18, 1207192), (21, 1034736), (24, 905394), (28, 776052), (36, 603596), (42, 517368), (48, 452697), (56, 388026), (63, 344912), (72, 301798), (84, 258684), (112, 194013), (126, 172456), (144, 150899), (168, 129342), (252, 86228), (336, 64671), (504, 43114), (1008, 21557)]