28190115

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{16931}}^1$

素因数の和:16979

約数の個数: 24

約数和(自身を含む): 50186448

約数和(自身を除く): 21996333

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 16931, 50793, 84655, 152379, 253965, 626447, 761895, 1879341, 3132235, 5638023, 9396705, 28190115]

約数ペア:

[(1, 28190115), (3, 9396705), (5, 5638023), (9, 3132235), (15, 1879341), (37, 761895), (45, 626447), (111, 253965), (185, 152379), (333, 84655), (555, 50793), (1665, 16931)]