18944295

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1277}}^1$

素因数の和:1351

約数の個数: 32

約数和(自身を含む): 32389632

約数和(自身を除く): 13445337

約数列:

[1, 3, 5, 15, 23, 43, 69, 115, 129, 215, 345, 645, 989, 1277, 2967, 3831, 4945, 6385, 14835, 19155, 29371, 54911, 88113, 146855, 164733, 274555, 440565, 823665, 1262953, 3788859, 6314765, 18944295]

約数ペア:

[(1, 18944295), (3, 6314765), (5, 3788859), (15, 1262953), (23, 823665), (43, 440565), (69, 274555), (115, 164733), (129, 146855), (215, 88113), (345, 54911), (645, 29371), (989, 19155), (1277, 14835), (2967, 6385), (3831, 4945)]