19187985

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1601}}^1$

素因数の和:1673

約数の個数: 32

約数和(自身を含む): 33219072

約数和(自身を除く): 14031087

約数列:

[1, 3, 5, 15, 17, 47, 51, 85, 141, 235, 255, 705, 799, 1601, 2397, 3995, 4803, 8005, 11985, 24015, 27217, 75247, 81651, 136085, 225741, 376235, 408255, 1128705, 1279199, 3837597, 6395995, 19187985]

約数ペア:

[(1, 19187985), (3, 6395995), (5, 3837597), (15, 1279199), (17, 1128705), (47, 408255), (51, 376235), (85, 225741), (141, 136085), (235, 81651), (255, 75247), (705, 27217), (799, 24015), (1601, 11985), (2397, 8005), (3995, 4803)]