19101201

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{557}}^1$

素因数の和:661

約数の個数: 32

約数和(自身を含む): 30855168

約数和(自身を除く): 11753967

約数列:

[1, 3, 7, 21, 23, 69, 71, 161, 213, 483, 497, 557, 1491, 1633, 1671, 3899, 4899, 11431, 11697, 12811, 34293, 38433, 39547, 89677, 118641, 269031, 276829, 830487, 909581, 2728743, 6367067, 19101201]

約数ペア:

[(1, 19101201), (3, 6367067), (7, 2728743), (21, 909581), (23, 830487), (69, 276829), (71, 269031), (161, 118641), (213, 89677), (483, 39547), (497, 38433), (557, 34293), (1491, 12811), (1633, 11697), (1671, 11431), (3899, 4899)]