20804316

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7019}}^1$

素因数の和:7058

約数の個数: 48

約数和(自身を含む): 55036800

約数和(自身を除く): 34232484

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 114, 156, 228, 247, 494, 741, 988, 1482, 2964, 7019, 14038, 21057, 28076, 42114, 84228, 91247, 133361, 182494, 266722, 273741, 364988, 400083, 533444, 547482, 800166, 1094964, 1600332, 1733693, 3467386, 5201079, 6934772, 10402158, 20804316]

約数ペア:

[(1, 20804316), (2, 10402158), (3, 6934772), (4, 5201079), (6, 3467386), (12, 1733693), (13, 1600332), (19, 1094964), (26, 800166), (38, 547482), (39, 533444), (52, 400083), (57, 364988), (76, 273741), (78, 266722), (114, 182494), (156, 133361), (228, 91247), (247, 84228), (494, 42114), (741, 28076), (988, 21057), (1482, 14038), (2964, 7019)]