21877190

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53359}}^1$

素因数の和:53407

約数の個数: 16

約数和(自身を含む): 40340160

約数和(自身を除く): 18462970

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 53359, 106718, 266795, 533590, 2187719, 4375438, 10938595, 21877190]

約数ペア:

[(1, 21877190), (2, 10938595), (5, 4375438), (10, 2187719), (41, 533590), (82, 266795), (205, 106718), (410, 53359)]