18807321

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1493}}^1$

素因数の和:1545

約数の個数: 32

約数和(自身を含む): 30119040

約数和(自身を除く): 11311719

約数列:

[1, 3, 13, 17, 19, 39, 51, 57, 221, 247, 323, 663, 741, 969, 1493, 4199, 4479, 12597, 19409, 25381, 28367, 58227, 76143, 85101, 329953, 368771, 482239, 989859, 1106313, 1446717, 6269107, 18807321]

約数ペア:

[(1, 18807321), (3, 6269107), (13, 1446717), (17, 1106313), (19, 989859), (39, 482239), (51, 368771), (57, 329953), (221, 85101), (247, 76143), (323, 58227), (663, 28367), (741, 25381), (969, 19409), (1493, 12597), (4199, 4479)]