20211372

素因数分解:

$2^2\times 3^2\times {\mathrm{509}}^1\times {\mathrm{1103}}^1$

素因数の和:1622

約数の個数: 36

約数和(自身を含む): 51236640

約数和(自身を除く): 31025268

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 509, 1018, 1103, 1527, 2036, 2206, 3054, 3309, 4412, 4581, 6108, 6618, 9162, 9927, 13236, 18324, 19854, 39708, 561427, 1122854, 1684281, 2245708, 3368562, 5052843, 6737124, 10105686, 20211372]

約数ペア:

[(1, 20211372), (2, 10105686), (3, 6737124), (4, 5052843), (6, 3368562), (9, 2245708), (12, 1684281), (18, 1122854), (36, 561427), (509, 39708), (1018, 19854), (1103, 18324), (1527, 13236), (2036, 9927), (2206, 9162), (3054, 6618), (3309, 6108), (4412, 4581)]