21411993

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{1163}}^1$

素因数の和:1221

約数の個数: 24

約数和(自身を含む): 31930848

約数和(自身を除く): 10518855

約数列:

[1, 3, 17, 19, 51, 57, 323, 361, 969, 1083, 1163, 3489, 6137, 18411, 19771, 22097, 59313, 66291, 375649, 419843, 1126947, 1259529, 7137331, 21411993]

約数ペア:

[(1, 21411993), (3, 7137331), (17, 1259529), (19, 1126947), (51, 419843), (57, 375649), (323, 66291), (361, 59313), (969, 22097), (1083, 19771), (1163, 18411), (3489, 6137)]