20889484

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{9689}}^1$

素因数の和:9718

約数の個数: 36

約数和(自身を含む): 46395720

約数和(自身を除く): 25506236

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 2156, 9689, 19378, 38756, 67823, 106579, 135646, 213158, 271292, 426316, 474761, 746053, 949522, 1492106, 1899044, 2984212, 5222371, 10444742, 20889484]

約数ペア:

[(1, 20889484), (2, 10444742), (4, 5222371), (7, 2984212), (11, 1899044), (14, 1492106), (22, 949522), (28, 746053), (44, 474761), (49, 426316), (77, 271292), (98, 213158), (154, 135646), (196, 106579), (308, 67823), (539, 38756), (1078, 19378), (2156, 9689)]