21545118

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1693}}^1$

素因数の和:1809

約数の個数: 48

約数和(自身を含む): 53909856

約数和(自身を除く): 32364738

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 101, 126, 202, 303, 606, 707, 909, 1414, 1693, 1818, 2121, 3386, 4242, 5079, 6363, 10158, 11851, 12726, 15237, 23702, 30474, 35553, 71106, 106659, 170993, 213318, 341986, 512979, 1025958, 1196951, 1538937, 2393902, 3077874, 3590853, 7181706, 10772559, 21545118]

約数ペア:

[(1, 21545118), (2, 10772559), (3, 7181706), (6, 3590853), (7, 3077874), (9, 2393902), (14, 1538937), (18, 1196951), (21, 1025958), (42, 512979), (63, 341986), (101, 213318), (126, 170993), (202, 106659), (303, 71106), (606, 35553), (707, 30474), (909, 23702), (1414, 15237), (1693, 12726), (1818, 11851), (2121, 10158), (3386, 6363), (4242, 5079)]