18813776

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{457}}^1$

素因数の和:579

約数の個数: 40

約数和(自身を含む): 38164224

約数和(自身を除く): 19350448

約数列:

[1, 2, 4, 8, 16, 31, 62, 83, 124, 166, 248, 332, 457, 496, 664, 914, 1328, 1828, 2573, 3656, 5146, 7312, 10292, 14167, 20584, 28334, 37931, 41168, 56668, 75862, 113336, 151724, 226672, 303448, 606896, 1175861, 2351722, 4703444, 9406888, 18813776]

約数ペア:

[(1, 18813776), (2, 9406888), (4, 4703444), (8, 2351722), (16, 1175861), (31, 606896), (62, 303448), (83, 226672), (124, 151724), (166, 113336), (248, 75862), (332, 56668), (457, 41168), (496, 37931), (664, 28334), (914, 20584), (1328, 14167), (1828, 10292), (2573, 7312), (3656, 5146)]