21981456

素因数分解:

$2^4\times 3^4\times 7^1\times {\mathrm{2423}}^1$

素因数の和:2450

約数の個数: 100

約数和(自身を含む): 72739392

約数和(自身を除く): 50757936

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 36, 42, 48, 54, 56, 63, 72, 81, 84, 108, 112, 126, 144, 162, 168, 189, 216, 252, 324, 336, 378, 432, 504, 567, 648, 756, 1008, 1134, 1296, 1512, 2268, 2423, 3024, 4536, 4846, 7269, 9072, 9692, 14538, 16961, 19384, 21807, 29076, 33922, 38768, 43614, 50883, 58152, 65421, 67844, 87228, 101766, 116304, 130842, 135688, 152649, 174456, 196263, 203532, 261684, 271376, 305298, 348912, 392526, 407064, 457947, 523368, 610596, 785052, 814128, 915894, 1046736, 1221192, 1373841, 1570104, 1831788, 2442384, 2747682, 3140208, 3663576, 5495364, 7327152, 10990728, 21981456]

約数ペア:

[(1, 21981456), (2, 10990728), (3, 7327152), (4, 5495364), (6, 3663576), (7, 3140208), (8, 2747682), (9, 2442384), (12, 1831788), (14, 1570104), (16, 1373841), (18, 1221192), (21, 1046736), (24, 915894), (27, 814128), (28, 785052), (36, 610596), (42, 523368), (48, 457947), (54, 407064), (56, 392526), (63, 348912), (72, 305298), (81, 271376), (84, 261684), (108, 203532), (112, 196263), (126, 174456), (144, 152649), (162, 135688), (168, 130842), (189, 116304), (216, 101766), (252, 87228), (324, 67844), (336, 65421), (378, 58152), (432, 50883), (504, 43614), (567, 38768), (648, 33922), (756, 29076), (1008, 21807), (1134, 19384), (1296, 16961), (1512, 14538), (2268, 9692), (2423, 9072), (3024, 7269), (4536, 4846)]