18921188

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1741}}^1$

素因数の和:1788

約数の個数: 48

約数和(自身を含む): 40971840

約数和(自身を除く): 22050652

約数列:

[1, 2, 4, 11, 13, 19, 22, 26, 38, 44, 52, 76, 143, 209, 247, 286, 418, 494, 572, 836, 988, 1741, 2717, 3482, 5434, 6964, 10868, 19151, 22633, 33079, 38302, 45266, 66158, 76604, 90532, 132316, 248963, 363869, 430027, 497926, 727738, 860054, 995852, 1455476, 1720108, 4730297, 9460594, 18921188]

約数ペア:

[(1, 18921188), (2, 9460594), (4, 4730297), (11, 1720108), (13, 1455476), (19, 995852), (22, 860054), (26, 727738), (38, 497926), (44, 430027), (52, 363869), (76, 248963), (143, 132316), (209, 90532), (247, 76604), (286, 66158), (418, 45266), (494, 38302), (572, 33079), (836, 22633), (988, 19151), (1741, 10868), (2717, 6964), (3482, 5434)]