20558512

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{7603}}^1$

素因数の和:7637

約数の個数: 30

約数和(自身を含む): 43137492

約数和(自身を除く): 22578980

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 7603, 15206, 30412, 60824, 98839, 121648, 197678, 395356, 790712, 1284907, 1581424, 2569814, 5139628, 10279256, 20558512]

約数ペア:

[(1, 20558512), (2, 10279256), (4, 5139628), (8, 2569814), (13, 1581424), (16, 1284907), (26, 790712), (52, 395356), (104, 197678), (169, 121648), (208, 98839), (338, 60824), (676, 30412), (1352, 15206), (2704, 7603)]