19818729

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5519}}^1$

素因数の和:5554

約数の個数: 32

約数和(自身を含む): 35328000

約数和(自身を除く): 15509271

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 171, 189, 399, 513, 1197, 3591, 5519, 16557, 38633, 49671, 104861, 115899, 149013, 314583, 347697, 734027, 943749, 1043091, 2202081, 2831247, 6606243, 19818729]

約数ペア:

[(1, 19818729), (3, 6606243), (7, 2831247), (9, 2202081), (19, 1043091), (21, 943749), (27, 734027), (57, 347697), (63, 314583), (133, 149013), (171, 115899), (189, 104861), (399, 49671), (513, 38633), (1197, 16557), (3591, 5519)]