21000377068

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{857}}^1\times {\mathrm{5407}}^1$

素因数の和:6382

約数の個数: 48

約数和(自身を含む): 40535599104

約数和(自身を除く): 19535222036

約数列:

[1, 2, 4, 11, 22, 44, 103, 206, 412, 857, 1133, 1714, 2266, 3428, 4532, 5407, 9427, 10814, 18854, 21628, 37708, 59477, 88271, 118954, 176542, 237908, 353084, 556921, 970981, 1113842, 1941962, 2227684, 3883924, 4633799, 6126131, 9267598, 12252262, 18535196, 24504524, 50971789, 101943578, 203887156, 477281297, 954562594, 1909125188, 5250094267, 10500188534, 21000377068]

約数ペア:

[(1, 21000377068), (2, 10500188534), (4, 5250094267), (11, 1909125188), (22, 954562594), (44, 477281297), (103, 203887156), (206, 101943578), (412, 50971789), (857, 24504524), (1133, 18535196), (1714, 12252262), (2266, 9267598), (3428, 6126131), (4532, 4633799), (5407, 3883924), (9427, 2227684), (10814, 1941962), (18854, 1113842), (21628, 970981), (37708, 556921), (59477, 353084), (88271, 237908), (118954, 176542)]