21921208

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{1093}}^1$

素因数の和:1231

約数の個数: 32

約数和(自身を含む): 43322400

約数和(自身を除く): 21401192

約数列:

[1, 2, 4, 8, 23, 46, 92, 109, 184, 218, 436, 872, 1093, 2186, 2507, 4372, 5014, 8744, 10028, 20056, 25139, 50278, 100556, 119137, 201112, 238274, 476548, 953096, 2740151, 5480302, 10960604, 21921208]

約数ペア:

[(1, 21921208), (2, 10960604), (4, 5480302), (8, 2740151), (23, 953096), (46, 476548), (92, 238274), (109, 201112), (184, 119137), (218, 100556), (436, 50278), (872, 25139), (1093, 20056), (2186, 10028), (2507, 8744), (4372, 5014)]