21090924

素因数分解:

$2^2\times 3^2\times {\mathrm{509}}^1\times {\mathrm{1151}}^1$

素因数の和:1670

約数の個数: 36

約数和(自身を含む): 53464320

約数和(自身を除く): 32373396

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 509, 1018, 1151, 1527, 2036, 2302, 3054, 3453, 4581, 4604, 6108, 6906, 9162, 10359, 13812, 18324, 20718, 41436, 585859, 1171718, 1757577, 2343436, 3515154, 5272731, 7030308, 10545462, 21090924]

約数ペア:

[(1, 21090924), (2, 10545462), (3, 7030308), (4, 5272731), (6, 3515154), (9, 2343436), (12, 1757577), (18, 1171718), (36, 585859), (509, 41436), (1018, 20718), (1151, 18324), (1527, 13812), (2036, 10359), (2302, 9162), (3054, 6906), (3453, 6108), (4581, 4604)]