28385253

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 46475520

約数和(自身を除く): 18090267

約数列:

[1, 3, 9, 13, 37, 39, 79, 83, 111, 117, 237, 249, 333, 481, 711, 747, 1027, 1079, 1443, 2923, 3071, 3081, 3237, 4329, 6557, 8769, 9213, 9243, 9711, 19671, 26307, 27639, 37999, 39923, 59013, 85241, 113997, 119769, 242609, 255723, 341991, 359307, 727827, 767169, 2183481, 3153917, 9461751, 28385253]

約数ペア:

[(1, 28385253), (3, 9461751), (9, 3153917), (13, 2183481), (37, 767169), (39, 727827), (79, 359307), (83, 341991), (111, 255723), (117, 242609), (237, 119769), (249, 113997), (333, 85241), (481, 59013), (711, 39923), (747, 37999), (1027, 27639), (1079, 26307), (1443, 19671), (2923, 9711), (3071, 9243), (3081, 9213), (3237, 8769), (4329, 6557)]