19780332

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{11527}}^1$

素因数の和:11558

約数の個数: 48

約数和(自身を含む): 54227712

約数和(自身を除く): 34447380

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 78, 132, 143, 156, 286, 429, 572, 858, 1716, 11527, 23054, 34581, 46108, 69162, 126797, 138324, 149851, 253594, 299702, 380391, 449553, 507188, 599404, 760782, 899106, 1521564, 1648361, 1798212, 3296722, 4945083, 6593444, 9890166, 19780332]

約数ペア:

[(1, 19780332), (2, 9890166), (3, 6593444), (4, 4945083), (6, 3296722), (11, 1798212), (12, 1648361), (13, 1521564), (22, 899106), (26, 760782), (33, 599404), (39, 507188), (44, 449553), (52, 380391), (66, 299702), (78, 253594), (132, 149851), (143, 138324), (156, 126797), (286, 69162), (429, 46108), (572, 34581), (858, 23054), (1716, 11527)]