21293426

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^2\times {\mathrm{101}}^1$

素因数の和:195

約数の個数: 48

約数和(自身を含む): 41332032

約数和(自身を除く): 20038606

約数列:

[1, 2, 7, 11, 14, 22, 37, 74, 77, 101, 154, 202, 259, 407, 518, 707, 814, 1111, 1369, 1414, 2222, 2738, 2849, 3737, 5698, 7474, 7777, 9583, 15059, 15554, 19166, 26159, 30118, 41107, 52318, 82214, 105413, 138269, 210826, 276538, 287749, 575498, 967883, 1520959, 1935766, 3041918, 10646713, 21293426]

約数ペア:

[(1, 21293426), (2, 10646713), (7, 3041918), (11, 1935766), (14, 1520959), (22, 967883), (37, 575498), (74, 287749), (77, 276538), (101, 210826), (154, 138269), (202, 105413), (259, 82214), (407, 52318), (518, 41107), (707, 30118), (814, 26159), (1111, 19166), (1369, 15554), (1414, 15059), (2222, 9583), (2738, 7777), (2849, 7474), (3737, 5698)]