21755818

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{91411}}^1$

素因数の和:91437

約数の個数: 16

約数和(自身を含む): 39489984

約数和(自身を除く): 17734166

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 91411, 182822, 639877, 1279754, 1553987, 3107974, 10877909, 21755818]

約数ペア:

[(1, 21755818), (2, 10877909), (7, 3107974), (14, 1553987), (17, 1279754), (34, 639877), (119, 182822), (238, 91411)]