21150401

素因数分解:

${\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{241}}^1$

素因数の和:440

約数の個数: 16

約数和(自身を含む): 23232000

約数和(自身を除く): 2081599

約数列:

[1, 19, 31, 149, 241, 589, 2831, 4579, 4619, 7471, 35909, 87761, 141949, 682271, 1113179, 21150401]

約数ペア:

[(1, 21150401), (19, 1113179), (31, 682271), (149, 141949), (241, 87761), (589, 35909), (2831, 7471), (4579, 4619)]