18795465584

素因数分解:

$2^4\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1321391}}^1$

素因数の和:1321533

約数の個数: 40

約数和(自身を含む): 41946267648

約数和(自身を除く): 23150802064

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 127, 254, 508, 889, 1016, 1778, 2032, 3556, 7112, 14224, 1321391, 2642782, 5285564, 9249737, 10571128, 18499474, 21142256, 36998948, 73997896, 147995792, 167816657, 335633314, 671266628, 1174716599, 1342533256, 2349433198, 2685066512, 4698866396, 9397732792, 18795465584]

約数ペア:

[(1, 18795465584), (2, 9397732792), (4, 4698866396), (7, 2685066512), (8, 2349433198), (14, 1342533256), (16, 1174716599), (28, 671266628), (56, 335633314), (112, 167816657), (127, 147995792), (254, 73997896), (508, 36998948), (889, 21142256), (1016, 18499474), (1778, 10571128), (2032, 9249737), (3556, 5285564), (7112, 2642782), (14224, 1321391)]