21431816

素因数分解:

$2^3\times 7^2\times {\mathrm{54673}}^1$

素因数の和:54693

約数の個数: 24

約数和(自身を含む): 46746270

約数和(自身を除く): 25314454

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 54673, 109346, 218692, 382711, 437384, 765422, 1530844, 2678977, 3061688, 5357954, 10715908, 21431816]

約数ペア:

[(1, 21431816), (2, 10715908), (4, 5357954), (7, 3061688), (8, 2678977), (14, 1530844), (28, 765422), (49, 437384), (56, 382711), (98, 218692), (196, 109346), (392, 54673)]