18561424

素因数分解:

$2^4\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1609}}^1$

素因数の和:1727

約数の個数: 40

約数和(自身を含む): 41525120

約数和(自身を除く): 22963696

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 103, 112, 206, 412, 721, 824, 1442, 1609, 1648, 2884, 3218, 5768, 6436, 11263, 11536, 12872, 22526, 25744, 45052, 90104, 165727, 180208, 331454, 662908, 1160089, 1325816, 2320178, 2651632, 4640356, 9280712, 18561424]

約数ペア:

[(1, 18561424), (2, 9280712), (4, 4640356), (7, 2651632), (8, 2320178), (14, 1325816), (16, 1160089), (28, 662908), (56, 331454), (103, 180208), (112, 165727), (206, 90104), (412, 45052), (721, 25744), (824, 22526), (1442, 12872), (1609, 11536), (1648, 11263), (2884, 6436), (3218, 5768)]