19251905

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:209

約数の個数: 32

約数和(自身を含む): 25712640

約数和(自身を除く): 6460735

約数列:

[1, 5, 17, 47, 61, 79, 85, 235, 305, 395, 799, 1037, 1343, 2867, 3713, 3995, 4819, 5185, 6715, 14335, 18565, 24095, 48739, 63121, 81923, 226493, 243695, 315605, 409615, 1132465, 3850381, 19251905]

約数ペア:

[(1, 19251905), (5, 3850381), (17, 1132465), (47, 409615), (61, 315605), (79, 243695), (85, 226493), (235, 81923), (305, 63121), (395, 48739), (799, 24095), (1037, 18565), (1343, 14335), (2867, 6715), (3713, 5185), (3995, 4819)]