28967913

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 48310080

約数和(自身を除く): 19342167

約数列:

[1, 3, 9, 13, 19, 39, 57, 83, 117, 157, 171, 247, 249, 471, 741, 747, 1079, 1413, 1577, 2041, 2223, 2983, 3237, 4731, 6123, 8949, 9711, 13031, 14193, 18369, 20501, 26847, 38779, 39093, 61503, 116337, 117279, 169403, 184509, 247589, 349011, 508209, 742767, 1524627, 2228301, 3218657, 9655971, 28967913]

約数ペア:

[(1, 28967913), (3, 9655971), (9, 3218657), (13, 2228301), (19, 1524627), (39, 742767), (57, 508209), (83, 349011), (117, 247589), (157, 184509), (171, 169403), (247, 117279), (249, 116337), (471, 61503), (741, 39093), (747, 38779), (1079, 26847), (1413, 20501), (1577, 18369), (2041, 14193), (2223, 13031), (2983, 9711), (3237, 8949), (4731, 6123)]