20858012

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{18169}}^1$

素因数の和:18221

約数の個数: 24

約数和(自身を含む): 42735840

約数和(自身を除く): 21877828

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 18169, 36338, 72676, 127183, 254366, 508732, 744929, 1489858, 2979716, 5214503, 10429006, 20858012]

約数ペア:

[(1, 20858012), (2, 10429006), (4, 5214503), (7, 2979716), (14, 1489858), (28, 744929), (41, 508732), (82, 254366), (164, 127183), (287, 72676), (574, 36338), (1148, 18169)]