21894278

素因数分解:

$2^1\times 7^2\times {\mathrm{157}}^1\times {\mathrm{1423}}^1$

素因数の和:1596

約数の個数: 24

約数和(自身を含む): 38473632

約数和(自身を除く): 16579354

約数列:

[1, 2, 7, 14, 49, 98, 157, 314, 1099, 1423, 2198, 2846, 7693, 9961, 15386, 19922, 69727, 139454, 223411, 446822, 1563877, 3127754, 10947139, 21894278]

約数ペア:

[(1, 21894278), (2, 10947139), (7, 3127754), (14, 1563877), (49, 446822), (98, 223411), (157, 139454), (314, 69727), (1099, 19922), (1423, 15386), (2198, 9961), (2846, 7693)]