21441860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97463}}^1$

素因数の和:97483

約数の個数: 24

約数和(自身を含む): 49121856

約数和(自身を除く): 27679996

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 97463, 194926, 389852, 487315, 974630, 1072093, 1949260, 2144186, 4288372, 5360465, 10720930, 21441860]

約数ペア:

[(1, 21441860), (2, 10720930), (4, 5360465), (5, 4288372), (10, 2144186), (11, 1949260), (20, 1072093), (22, 974630), (44, 487315), (55, 389852), (110, 194926), (220, 97463)]