21503502

素因数分解:

$2^1\times 3^3\times {\mathrm{398213}}^1$

素因数の和:398224

約数の個数: 16

約数和(自身を含む): 47785680

約数和(自身を除く): 26282178

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 398213, 796426, 1194639, 2389278, 3583917, 7167834, 10751751, 21503502]

約数ペア:

[(1, 21503502), (2, 10751751), (3, 7167834), (6, 3583917), (9, 2389278), (18, 1194639), (27, 796426), (54, 398213)]