201821078

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{25171}}^1$

素因数の和:25403

約数の個数: 16

約数和(自身を含む): 320187840

約数和(自身を除く): 118366762

約数列:

[1, 2, 19, 38, 211, 422, 4009, 8018, 25171, 50342, 478249, 956498, 5311081, 10622162, 100910539, 201821078]

約数ペア:

[(1, 201821078), (2, 100910539), (19, 10622162), (38, 5311081), (211, 956498), (422, 478249), (4009, 50342), (8018, 25171)]