13891565

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:197

約数の個数: 32

約数和(自身を含む): 18662400

約数和(自身を除く): 4770835

約数列:

[1, 5, 19, 31, 53, 89, 95, 155, 265, 445, 589, 1007, 1643, 1691, 2759, 2945, 4717, 5035, 8215, 8455, 13795, 23585, 31217, 52421, 89623, 146227, 156085, 262105, 448115, 731135, 2778313, 13891565]

約数ペア:

[(1, 13891565), (5, 2778313), (19, 731135), (31, 448115), (53, 262105), (89, 156085), (95, 146227), (155, 89623), (265, 52421), (445, 31217), (589, 23585), (1007, 13795), (1643, 8455), (1691, 8215), (2759, 5035), (2945, 4717)]