25190919

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{509}}^1$

素因数の和:581

約数の個数: 40

約数和(自身を含む): 41469120

約数和(自身を除く): 16278201

約数列:

[1, 3, 9, 13, 27, 39, 47, 81, 117, 141, 351, 423, 509, 611, 1053, 1269, 1527, 1833, 3807, 4581, 5499, 6617, 13743, 16497, 19851, 23923, 41229, 49491, 59553, 71769, 178659, 215307, 310999, 535977, 645921, 932997, 1937763, 2798991, 8396973, 25190919]

約数ペア:

[(1, 25190919), (3, 8396973), (9, 2798991), (13, 1937763), (27, 932997), (39, 645921), (47, 535977), (81, 310999), (117, 215307), (141, 178659), (351, 71769), (423, 59553), (509, 49491), (611, 41229), (1053, 23923), (1269, 19851), (1527, 16497), (1833, 13743), (3807, 6617), (4581, 5499)]