19557645

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{269}}^1$

素因数の和:445

約数の個数: 32

約数和(自身を含む): 32503680

約数和(自身を除く): 12946035

約数列:

[1, 3, 5, 15, 37, 111, 131, 185, 269, 393, 555, 655, 807, 1345, 1965, 4035, 4847, 9953, 14541, 24235, 29859, 35239, 49765, 72705, 105717, 149295, 176195, 528585, 1303843, 3911529, 6519215, 19557645]

約数ペア:

[(1, 19557645), (3, 6519215), (5, 3911529), (15, 1303843), (37, 528585), (111, 176195), (131, 149295), (185, 105717), (269, 72705), (393, 49765), (555, 35239), (655, 29859), (807, 24235), (1345, 14541), (1965, 9953), (4035, 4847)]