20213447065

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{118273}}^1$

素因数の和:118561

約数の個数: 32

約数和(自身を含む): 29294104320

約数和(自身を除く): 9080657255

約数列:

[1, 5, 7, 19, 35, 95, 133, 257, 665, 1285, 1799, 4883, 8995, 24415, 34181, 118273, 170905, 591365, 827911, 2247187, 4139555, 11235935, 15730309, 30396161, 78651545, 151980805, 212773127, 577527059, 1063865635, 2887635295, 4042689413, 20213447065]

約数ペア:

[(1, 20213447065), (5, 4042689413), (7, 2887635295), (19, 1063865635), (35, 577527059), (95, 212773127), (133, 151980805), (257, 78651545), (665, 30396161), (1285, 15730309), (1799, 11235935), (4883, 4139555), (8995, 2247187), (24415, 827911), (34181, 591365), (118273, 170905)]