19026553

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1$

素因数の和:302

約数の個数: 32

約数和(自身を含む): 25401600

約数和(自身を除く): 6375047

約数列:

[1, 7, 13, 17, 49, 91, 119, 221, 251, 343, 637, 833, 1547, 1757, 3263, 4267, 4459, 5831, 10829, 12299, 22841, 29869, 55471, 75803, 86093, 159887, 209083, 388297, 1119209, 1463581, 2718079, 19026553]

約数ペア:

[(1, 19026553), (7, 2718079), (13, 1463581), (17, 1119209), (49, 388297), (91, 209083), (119, 159887), (221, 86093), (251, 75803), (343, 55471), (637, 29869), (833, 22841), (1547, 12299), (1757, 10829), (3263, 5831), (4267, 4459)]