21863115

素因数分解:

$3^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1459}}^1$

素因数の和:1513

約数の個数: 40

約数和(自身を含む): 40278480

約数和(自身を除く): 18415365

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 81, 111, 135, 185, 333, 405, 555, 999, 1459, 1665, 2997, 4377, 4995, 7295, 13131, 14985, 21885, 39393, 53983, 65655, 118179, 161949, 196965, 269915, 485847, 590895, 809745, 1457541, 2429235, 4372623, 7287705, 21863115]

約数ペア:

[(1, 21863115), (3, 7287705), (5, 4372623), (9, 2429235), (15, 1457541), (27, 809745), (37, 590895), (45, 485847), (81, 269915), (111, 196965), (135, 161949), (185, 118179), (333, 65655), (405, 53983), (555, 39393), (999, 21885), (1459, 14985), (1665, 13131), (2997, 7295), (4377, 4995)]