19840816

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{16987}}^1$

素因数の和:17068

約数の個数: 20

約数和(自身を含む): 38970472

約数和(自身を除く): 19129656

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 16987, 33974, 67948, 135896, 271792, 1240051, 2480102, 4960204, 9920408, 19840816]

約数ペア:

[(1, 19840816), (2, 9920408), (4, 4960204), (8, 2480102), (16, 1240051), (73, 271792), (146, 135896), (292, 67948), (584, 33974), (1168, 16987)]