19660108

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{127}}^1\times {\mathrm{229}}^1$

素因数の和:386

約数の個数: 36

約数和(自身を含む): 37712640

約数和(自身を除く): 18052532

約数列:

[1, 2, 4, 13, 26, 52, 127, 169, 229, 254, 338, 458, 508, 676, 916, 1651, 2977, 3302, 5954, 6604, 11908, 21463, 29083, 38701, 42926, 58166, 77402, 85852, 116332, 154804, 378079, 756158, 1512316, 4915027, 9830054, 19660108]

約数ペア:

[(1, 19660108), (2, 9830054), (4, 4915027), (13, 1512316), (26, 756158), (52, 378079), (127, 154804), (169, 116332), (229, 85852), (254, 77402), (338, 58166), (458, 42926), (508, 38701), (676, 29083), (916, 21463), (1651, 11908), (2977, 6604), (3302, 5954)]