21572512

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{3989}}^1$

素因数の和:4025

約数の個数: 36

約数和(自身を含む): 46000710

約数和(自身を除く): 24428198

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 169, 208, 338, 416, 676, 1352, 2704, 3989, 5408, 7978, 15956, 31912, 51857, 63824, 103714, 127648, 207428, 414856, 674141, 829712, 1348282, 1659424, 2696564, 5393128, 10786256, 21572512]

約数ペア:

[(1, 21572512), (2, 10786256), (4, 5393128), (8, 2696564), (13, 1659424), (16, 1348282), (26, 829712), (32, 674141), (52, 414856), (104, 207428), (169, 127648), (208, 103714), (338, 63824), (416, 51857), (676, 31912), (1352, 15956), (2704, 7978), (3989, 5408)]