20550208

素因数分解:

$2^6\times 7^2\times {\mathrm{6553}}^1$

素因数の和:6579

約数の個数: 42

約数和(自身を含む): 47444406

約数和(自身を除く): 26894198

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 1568, 3136, 6553, 13106, 26212, 45871, 52424, 91742, 104848, 183484, 209696, 321097, 366968, 419392, 642194, 733936, 1284388, 1467872, 2568776, 2935744, 5137552, 10275104, 20550208]

約数ペア:

[(1, 20550208), (2, 10275104), (4, 5137552), (7, 2935744), (8, 2568776), (14, 1467872), (16, 1284388), (28, 733936), (32, 642194), (49, 419392), (56, 366968), (64, 321097), (98, 209696), (112, 183484), (196, 104848), (224, 91742), (392, 52424), (448, 45871), (784, 26212), (1568, 13106), (3136, 6553)]