219871405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{71971}}^1$

素因数の和:72036

約数の個数: 16

約数和(自身を含む): 290191104

約数和(自身を除く): 70319699

約数列:

[1, 5, 13, 47, 65, 235, 611, 3055, 71971, 359855, 935623, 3382637, 4678115, 16913185, 43974281, 219871405]

約数ペア:

[(1, 219871405), (5, 43974281), (13, 16913185), (47, 4678115), (65, 3382637), (235, 935623), (611, 359855), (3055, 71971)]