21457656

素因数分解:

$2^3\times 3^3\times {\mathrm{11}}^2\times {\mathrm{821}}^1$

素因数の和:858

約数の個数: 96

約数和(自身を含む): 65595600

約数和(自身を除く): 44137944

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 27, 33, 36, 44, 54, 66, 72, 88, 99, 108, 121, 132, 198, 216, 242, 264, 297, 363, 396, 484, 594, 726, 792, 821, 968, 1089, 1188, 1452, 1642, 2178, 2376, 2463, 2904, 3267, 3284, 4356, 4926, 6534, 6568, 7389, 8712, 9031, 9852, 13068, 14778, 18062, 19704, 22167, 26136, 27093, 29556, 36124, 44334, 54186, 59112, 72248, 81279, 88668, 99341, 108372, 162558, 177336, 198682, 216744, 243837, 298023, 325116, 397364, 487674, 596046, 650232, 794728, 894069, 975348, 1192092, 1788138, 1950696, 2384184, 2682207, 3576276, 5364414, 7152552, 10728828, 21457656]

約数ペア:

[(1, 21457656), (2, 10728828), (3, 7152552), (4, 5364414), (6, 3576276), (8, 2682207), (9, 2384184), (11, 1950696), (12, 1788138), (18, 1192092), (22, 975348), (24, 894069), (27, 794728), (33, 650232), (36, 596046), (44, 487674), (54, 397364), (66, 325116), (72, 298023), (88, 243837), (99, 216744), (108, 198682), (121, 177336), (132, 162558), (198, 108372), (216, 99341), (242, 88668), (264, 81279), (297, 72248), (363, 59112), (396, 54186), (484, 44334), (594, 36124), (726, 29556), (792, 27093), (821, 26136), (968, 22167), (1089, 19704), (1188, 18062), (1452, 14778), (1642, 13068), (2178, 9852), (2376, 9031), (2463, 8712), (2904, 7389), (3267, 6568), (3284, 6534), (4356, 4926)]