21390950

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{8731}}^1$

素因数の和:8757

約数の個数: 36

約数和(自身を含む): 46288332

約数和(自身を除く): 24897382

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 175, 245, 350, 490, 1225, 2450, 8731, 17462, 43655, 61117, 87310, 122234, 218275, 305585, 427819, 436550, 611170, 855638, 1527925, 2139095, 3055850, 4278190, 10695475, 21390950]

約数ペア:

[(1, 21390950), (2, 10695475), (5, 4278190), (7, 3055850), (10, 2139095), (14, 1527925), (25, 855638), (35, 611170), (49, 436550), (50, 427819), (70, 305585), (98, 218275), (175, 122234), (245, 87310), (350, 61117), (490, 43655), (1225, 17462), (2450, 8731)]