21300345

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1163}}^1$

素因数の和:1222

約数の個数: 48

約数和(自身を含む): 41401152

約数和(自身を除く): 20100807

約数列:

[1, 3, 5, 9, 11, 15, 33, 37, 45, 55, 99, 111, 165, 185, 333, 407, 495, 555, 1163, 1221, 1665, 2035, 3489, 3663, 5815, 6105, 10467, 12793, 17445, 18315, 38379, 43031, 52335, 63965, 115137, 129093, 191895, 215155, 387279, 473341, 575685, 645465, 1420023, 1936395, 2366705, 4260069, 7100115, 21300345]

約数ペア:

[(1, 21300345), (3, 7100115), (5, 4260069), (9, 2366705), (11, 1936395), (15, 1420023), (33, 645465), (37, 575685), (45, 473341), (55, 387279), (99, 215155), (111, 191895), (165, 129093), (185, 115137), (333, 63965), (407, 52335), (495, 43031), (555, 38379), (1163, 18315), (1221, 17445), (1665, 12793), (2035, 10467), (3489, 6105), (3663, 5815)]