19809568

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{8719}}^1$

素因数の和:8800

約数の個数: 24

約数和(自身を含む): 39553920

約数和(自身を除く): 19744352

約数列:

[1, 2, 4, 8, 16, 32, 71, 142, 284, 568, 1136, 2272, 8719, 17438, 34876, 69752, 139504, 279008, 619049, 1238098, 2476196, 4952392, 9904784, 19809568]

約数ペア:

[(1, 19809568), (2, 9904784), (4, 4952392), (8, 2476196), (16, 1238098), (32, 619049), (71, 279008), (142, 139504), (284, 69752), (568, 34876), (1136, 17438), (2272, 8719)]