18883696

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{90787}}^1$

素因数の和:90808

約数の個数: 20

約数和(自身を含む): 39401992

約数和(自身を除く): 20518296

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 90787, 181574, 363148, 726296, 1180231, 1452592, 2360462, 4720924, 9441848, 18883696]

約数ペア:

[(1, 18883696), (2, 9441848), (4, 4720924), (8, 2360462), (13, 1452592), (16, 1180231), (26, 726296), (52, 363148), (104, 181574), (208, 90787)]