21110292

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4409}}^1$

素因数の和:4445

約数の個数: 72

約数和(自身を含む): 64209600

約数和(自身を除く): 43099308

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 28, 36, 38, 42, 57, 63, 76, 84, 114, 126, 133, 171, 228, 252, 266, 342, 399, 532, 684, 798, 1197, 1596, 2394, 4409, 4788, 8818, 13227, 17636, 26454, 30863, 39681, 52908, 61726, 79362, 83771, 92589, 123452, 158724, 167542, 185178, 251313, 277767, 335084, 370356, 502626, 555534, 586397, 753939, 1005252, 1111068, 1172794, 1507878, 1759191, 2345588, 3015756, 3518382, 5277573, 7036764, 10555146, 21110292]

約数ペア:

[(1, 21110292), (2, 10555146), (3, 7036764), (4, 5277573), (6, 3518382), (7, 3015756), (9, 2345588), (12, 1759191), (14, 1507878), (18, 1172794), (19, 1111068), (21, 1005252), (28, 753939), (36, 586397), (38, 555534), (42, 502626), (57, 370356), (63, 335084), (76, 277767), (84, 251313), (114, 185178), (126, 167542), (133, 158724), (171, 123452), (228, 92589), (252, 83771), (266, 79362), (342, 61726), (399, 52908), (532, 39681), (684, 30863), (798, 26454), (1197, 17636), (1596, 13227), (2394, 8818), (4409, 4788)]