28173465

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{16921}}^1$

素因数の和:16969

約数の個数: 24

約数和(自身を含む): 50156808

約数和(自身を除く): 21983343

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 16921, 50763, 84605, 152289, 253815, 626077, 761445, 1878231, 3130385, 5634693, 9391155, 28173465]

約数ペア:

[(1, 28173465), (3, 9391155), (5, 5634693), (9, 3130385), (15, 1878231), (37, 761445), (45, 626077), (111, 253815), (185, 152289), (333, 84605), (555, 50763), (1665, 16921)]