21167019640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{866081}}^1$

素因数の和:866152

約数の個数: 64

約数和(自身を含む): 52380639360

約数和(自身を除く): 31213619720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 47, 52, 65, 94, 104, 130, 188, 235, 260, 376, 470, 520, 611, 940, 1222, 1880, 2444, 3055, 4888, 6110, 12220, 24440, 866081, 1732162, 3464324, 4330405, 6928648, 8660810, 11259053, 17321620, 22518106, 34643240, 40705807, 45036212, 56295265, 81411614, 90072424, 112590530, 162823228, 203529035, 225181060, 325646456, 407058070, 450362120, 529175491, 814116140, 1058350982, 1628232280, 2116701964, 2645877455, 4233403928, 5291754910, 10583509820, 21167019640]

約数ペア:

[(1, 21167019640), (2, 10583509820), (4, 5291754910), (5, 4233403928), (8, 2645877455), (10, 2116701964), (13, 1628232280), (20, 1058350982), (26, 814116140), (40, 529175491), (47, 450362120), (52, 407058070), (65, 325646456), (94, 225181060), (104, 203529035), (130, 162823228), (188, 112590530), (235, 90072424), (260, 81411614), (376, 56295265), (470, 45036212), (520, 40705807), (611, 34643240), (940, 22518106), (1222, 17321620), (1880, 11259053), (2444, 8660810), (3055, 6928648), (4888, 4330405), (6110, 3464324), (12220, 1732162), (24440, 866081)]