18561309

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{677}}^1$

素因数の和:749

約数の個数: 32

約数和(自身を含む): 28855680

約数和(自身を除く): 10294371

約数列:

[1, 3, 13, 19, 37, 39, 57, 111, 247, 481, 677, 703, 741, 1443, 2031, 2109, 8801, 9139, 12863, 25049, 26403, 27417, 38589, 75147, 167219, 325637, 475931, 501657, 976911, 1427793, 6187103, 18561309]

約数ペア:

[(1, 18561309), (3, 6187103), (13, 1427793), (19, 976911), (37, 501657), (39, 475931), (57, 325637), (111, 167219), (247, 75147), (481, 38589), (677, 27417), (703, 26403), (741, 25049), (1443, 12863), (2031, 9139), (2109, 8801)]