21331970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{3659}}^1$

素因数の和:3730

約数の個数: 32

約数和(自身を含む): 42690240

約数和(自身を除く): 21358270

約数列:

[1, 2, 5, 10, 11, 22, 53, 55, 106, 110, 265, 530, 583, 1166, 2915, 3659, 5830, 7318, 18295, 36590, 40249, 80498, 193927, 201245, 387854, 402490, 969635, 1939270, 2133197, 4266394, 10665985, 21331970]

約数ペア:

[(1, 21331970), (2, 10665985), (5, 4266394), (10, 2133197), (11, 1939270), (22, 969635), (53, 402490), (55, 387854), (106, 201245), (110, 193927), (265, 80498), (530, 40249), (583, 36590), (1166, 18295), (2915, 7318), (3659, 5830)]