20444985

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{401}}^1$

素因数の和:526

約数の個数: 48

約数和(自身を含む): 39132288

約数和(自身を除く): 18687303

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 103, 165, 309, 401, 495, 515, 927, 1133, 1203, 1545, 2005, 3399, 3609, 4411, 4635, 5665, 6015, 10197, 13233, 16995, 18045, 22055, 39699, 41303, 50985, 66165, 123909, 198495, 206515, 371727, 454333, 619545, 1362999, 1858635, 2271665, 4088997, 6814995, 20444985]

約数ペア:

[(1, 20444985), (3, 6814995), (5, 4088997), (9, 2271665), (11, 1858635), (15, 1362999), (33, 619545), (45, 454333), (55, 371727), (99, 206515), (103, 198495), (165, 123909), (309, 66165), (401, 50985), (495, 41303), (515, 39699), (927, 22055), (1133, 18045), (1203, 16995), (1545, 13233), (2005, 10197), (3399, 6015), (3609, 5665), (4411, 4635)]