19539848

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{251}}^1\times {\mathrm{263}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 37920960

約数和(自身を除く): 18381112

約数列:

[1, 2, 4, 8, 37, 74, 148, 251, 263, 296, 502, 526, 1004, 1052, 2008, 2104, 9287, 9731, 18574, 19462, 37148, 38924, 66013, 74296, 77848, 132026, 264052, 528104, 2442481, 4884962, 9769924, 19539848]

約数ペア:

[(1, 19539848), (2, 9769924), (4, 4884962), (8, 2442481), (37, 528104), (74, 264052), (148, 132026), (251, 77848), (263, 74296), (296, 66013), (502, 38924), (526, 37148), (1004, 19462), (1052, 18574), (2008, 9731), (2104, 9287)]