19865830

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{5503}}^1$

素因数の和:5548

約数の個数: 24

約数和(自身を含む): 37746432

約数和(自身を除く): 17880602

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 361, 722, 1805, 3610, 5503, 11006, 27515, 55030, 104557, 209114, 522785, 1045570, 1986583, 3973166, 9932915, 19865830]

約数ペア:

[(1, 19865830), (2, 9932915), (5, 3973166), (10, 1986583), (19, 1045570), (38, 522785), (95, 209114), (190, 104557), (361, 55030), (722, 27515), (1805, 11006), (3610, 5503)]