21477390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1759}}^1$

素因数の和:1817

約数の個数: 64

約数和(自身を含む): 57784320

約数和(自身を除く): 36306930

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 37, 55, 66, 74, 110, 111, 165, 185, 222, 330, 370, 407, 555, 814, 1110, 1221, 1759, 2035, 2442, 3518, 4070, 5277, 6105, 8795, 10554, 12210, 17590, 19349, 26385, 38698, 52770, 58047, 65083, 96745, 116094, 130166, 193490, 195249, 290235, 325415, 390498, 580470, 650830, 715913, 976245, 1431826, 1952490, 2147739, 3579565, 4295478, 7159130, 10738695, 21477390]

約数ペア:

[(1, 21477390), (2, 10738695), (3, 7159130), (5, 4295478), (6, 3579565), (10, 2147739), (11, 1952490), (15, 1431826), (22, 976245), (30, 715913), (33, 650830), (37, 580470), (55, 390498), (66, 325415), (74, 290235), (110, 195249), (111, 193490), (165, 130166), (185, 116094), (222, 96745), (330, 65083), (370, 58047), (407, 52770), (555, 38698), (814, 26385), (1110, 19349), (1221, 17590), (1759, 12210), (2035, 10554), (2442, 8795), (3518, 6105), (4070, 5277)]