19880504

素因数分解:

$2^3\times 7^1\times {\mathrm{355009}}^1$

素因数の和:355022

約数の個数: 16

約数和(自身を含む): 42601200

約数和(自身を除く): 22720696

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 355009, 710018, 1420036, 2485063, 2840072, 4970126, 9940252, 19880504]

約数ペア:

[(1, 19880504), (2, 9940252), (4, 4970126), (7, 2840072), (8, 2485063), (14, 1420036), (28, 710018), (56, 355009)]