18719954

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{6211}}^1$

素因数の和:6361

約数の個数: 16

約数和(自身を含む): 30861216

約数和(自身を除く): 12141262

約数列:

[1, 2, 11, 22, 137, 274, 1507, 3014, 6211, 12422, 68321, 136642, 850907, 1701814, 9359977, 18719954]

約数ペア:

[(1, 18719954), (2, 9359977), (11, 1701814), (22, 850907), (137, 136642), (274, 68321), (1507, 12422), (3014, 6211)]