18457868

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{61}}^1$

素因数の和:135

約数の個数: 72

約数和(自身を含む): 40320336

約数和(自身を除く): 21862468

約数列:

[1, 2, 4, 11, 13, 22, 23, 26, 44, 46, 52, 61, 92, 122, 143, 244, 253, 286, 299, 506, 529, 572, 598, 671, 793, 1012, 1058, 1196, 1342, 1403, 1586, 2116, 2684, 2806, 3172, 3289, 5612, 5819, 6578, 6877, 8723, 11638, 13156, 13754, 15433, 17446, 18239, 23276, 27508, 30866, 32269, 34892, 36478, 61732, 64538, 72956, 75647, 129076, 151294, 200629, 302588, 354959, 401258, 419497, 709918, 802516, 838994, 1419836, 1677988, 4614467, 9228934, 18457868]

約数ペア:

[(1, 18457868), (2, 9228934), (4, 4614467), (11, 1677988), (13, 1419836), (22, 838994), (23, 802516), (26, 709918), (44, 419497), (46, 401258), (52, 354959), (61, 302588), (92, 200629), (122, 151294), (143, 129076), (244, 75647), (253, 72956), (286, 64538), (299, 61732), (506, 36478), (529, 34892), (572, 32269), (598, 30866), (671, 27508), (793, 23276), (1012, 18239), (1058, 17446), (1196, 15433), (1342, 13754), (1403, 13156), (1586, 11638), (2116, 8723), (2684, 6877), (2806, 6578), (3172, 5819), (3289, 5612)]