21017672

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3313}}^1$

素因数の和:3393

約数の個数: 32

約数和(自身を含む): 43148280

約数和(自身を除く): 22130608

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 244, 488, 793, 1586, 3172, 3313, 6344, 6626, 13252, 26504, 43069, 86138, 172276, 202093, 344552, 404186, 808372, 1616744, 2627209, 5254418, 10508836, 21017672]

約数ペア:

[(1, 21017672), (2, 10508836), (4, 5254418), (8, 2627209), (13, 1616744), (26, 808372), (52, 404186), (61, 344552), (104, 202093), (122, 172276), (244, 86138), (488, 43069), (793, 26504), (1586, 13252), (3172, 6626), (3313, 6344)]