18769716

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{211}}^1\times {\mathrm{353}}^1$

素因数の和:581

約数の個数: 72

約数和(自身を含む): 54634944

約数和(自身を除く): 35865228

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 211, 252, 353, 422, 633, 706, 844, 1059, 1266, 1412, 1477, 1899, 2118, 2471, 2532, 2954, 3177, 3798, 4236, 4431, 4942, 5908, 6354, 7413, 7596, 8862, 9884, 12708, 13293, 14826, 17724, 22239, 26586, 29652, 44478, 53172, 74483, 88956, 148966, 223449, 297932, 446898, 521381, 670347, 893796, 1042762, 1340694, 1564143, 2085524, 2681388, 3128286, 4692429, 6256572, 9384858, 18769716]

約数ペア:

[(1, 18769716), (2, 9384858), (3, 6256572), (4, 4692429), (6, 3128286), (7, 2681388), (9, 2085524), (12, 1564143), (14, 1340694), (18, 1042762), (21, 893796), (28, 670347), (36, 521381), (42, 446898), (63, 297932), (84, 223449), (126, 148966), (211, 88956), (252, 74483), (353, 53172), (422, 44478), (633, 29652), (706, 26586), (844, 22239), (1059, 17724), (1266, 14826), (1412, 13293), (1477, 12708), (1899, 9884), (2118, 8862), (2471, 7596), (2532, 7413), (2954, 6354), (3177, 5908), (3798, 4942), (4236, 4431)]