19975952

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{271}}^2$

素因数の和:567

約数の個数: 30

約数和(自身を含む): 41131854

約数和(自身を除く): 21155902

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 271, 272, 542, 1084, 2168, 4336, 4607, 9214, 18428, 36856, 73441, 73712, 146882, 293764, 587528, 1175056, 1248497, 2496994, 4993988, 9987976, 19975952]

約数ペア:

[(1, 19975952), (2, 9987976), (4, 4993988), (8, 2496994), (16, 1248497), (17, 1175056), (34, 587528), (68, 293764), (136, 146882), (271, 73712), (272, 73441), (542, 36856), (1084, 18428), (2168, 9214), (4336, 4607)]