20807976

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{587}}^1$

素因数の和:814

約数の個数: 64

約数和(自身を含む): 59834880

約数和(自身を除く): 39026904

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 211, 422, 587, 633, 844, 1174, 1266, 1477, 1688, 1761, 2348, 2532, 2954, 3522, 4109, 4431, 4696, 5064, 5908, 7044, 8218, 8862, 11816, 12327, 14088, 16436, 17724, 24654, 32872, 35448, 49308, 98616, 123857, 247714, 371571, 495428, 743142, 866999, 990856, 1486284, 1733998, 2600997, 2972568, 3467996, 5201994, 6935992, 10403988, 20807976]

約数ペア:

[(1, 20807976), (2, 10403988), (3, 6935992), (4, 5201994), (6, 3467996), (7, 2972568), (8, 2600997), (12, 1733998), (14, 1486284), (21, 990856), (24, 866999), (28, 743142), (42, 495428), (56, 371571), (84, 247714), (168, 123857), (211, 98616), (422, 49308), (587, 35448), (633, 32872), (844, 24654), (1174, 17724), (1266, 16436), (1477, 14088), (1688, 12327), (1761, 11816), (2348, 8862), (2532, 8218), (2954, 7044), (3522, 5908), (4109, 5064), (4431, 4696)]