1997894418

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{367}}^1\times {\mathrm{983}}^1$

素因数の和:1439

約数の個数: 64

約数和(自身を含む): 4380106752

約数和(自身を除く): 2382212334

約数列:

[1, 2, 3, 6, 13, 26, 39, 71, 78, 142, 213, 367, 426, 734, 923, 983, 1101, 1846, 1966, 2202, 2769, 2949, 4771, 5538, 5898, 9542, 12779, 14313, 25558, 26057, 28626, 38337, 52114, 69793, 76674, 78171, 139586, 156342, 209379, 338741, 360761, 418758, 677482, 721522, 907309, 1016223, 1082283, 1814618, 2032446, 2164566, 2721927, 4689893, 5443854, 9379786, 14069679, 25614031, 28139358, 51228062, 76842093, 153684186, 332982403, 665964806, 998947209, 1997894418]

約数ペア:

[(1, 1997894418), (2, 998947209), (3, 665964806), (6, 332982403), (13, 153684186), (26, 76842093), (39, 51228062), (71, 28139358), (78, 25614031), (142, 14069679), (213, 9379786), (367, 5443854), (426, 4689893), (734, 2721927), (923, 2164566), (983, 2032446), (1101, 1814618), (1846, 1082283), (1966, 1016223), (2202, 907309), (2769, 721522), (2949, 677482), (4771, 418758), (5538, 360761), (5898, 338741), (9542, 209379), (12779, 156342), (14313, 139586), (25558, 78171), (26057, 76674), (28626, 69793), (38337, 52114)]