21054964

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{2083}}^1$

素因数の和:2132

約数の個数: 36

約数和(自身を含む): 44464224

約数和(自身を除く): 23409260

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 361, 532, 722, 1444, 2083, 2527, 4166, 5054, 8332, 10108, 14581, 29162, 39577, 58324, 79154, 158308, 277039, 554078, 751963, 1108156, 1503926, 3007852, 5263741, 10527482, 21054964]

約数ペア:

[(1, 21054964), (2, 10527482), (4, 5263741), (7, 3007852), (14, 1503926), (19, 1108156), (28, 751963), (38, 554078), (76, 277039), (133, 158308), (266, 79154), (361, 58324), (532, 39577), (722, 29162), (1444, 14581), (2083, 10108), (2527, 8332), (4166, 5054)]