18888688

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12973}}^1$

素因数の和:13001

約数の個数: 40

約数和(自身を含む): 45045728

約数和(自身を除く): 26157040

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 12973, 25946, 51892, 90811, 103784, 168649, 181622, 207568, 337298, 363244, 674596, 726488, 1180543, 1349192, 1452976, 2361086, 2698384, 4722172, 9444344, 18888688]

約数ペア:

[(1, 18888688), (2, 9444344), (4, 4722172), (7, 2698384), (8, 2361086), (13, 1452976), (14, 1349192), (16, 1180543), (26, 726488), (28, 674596), (52, 363244), (56, 337298), (91, 207568), (104, 181622), (112, 168649), (182, 103784), (208, 90811), (364, 51892), (728, 25946), (1456, 12973)]