18931484

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1439}}^1$

素因数の和:1490

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 21711076

約数列:

[1, 2, 4, 11, 13, 22, 23, 26, 44, 46, 52, 92, 143, 253, 286, 299, 506, 572, 598, 1012, 1196, 1439, 2878, 3289, 5756, 6578, 13156, 15829, 18707, 31658, 33097, 37414, 63316, 66194, 74828, 132388, 205777, 364067, 411554, 430261, 728134, 823108, 860522, 1456268, 1721044, 4732871, 9465742, 18931484]

約数ペア:

[(1, 18931484), (2, 9465742), (4, 4732871), (11, 1721044), (13, 1456268), (22, 860522), (23, 823108), (26, 728134), (44, 430261), (46, 411554), (52, 364067), (92, 205777), (143, 132388), (253, 74828), (286, 66194), (299, 63316), (506, 37414), (572, 33097), (598, 31658), (1012, 18707), (1196, 15829), (1439, 13156), (2878, 6578), (3289, 5756)]