20730872

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{38677}}^1$

素因数の和:38750

約数の個数: 16

約数和(自身を含む): 39451560

約数和(自身を除く): 18720688

約数列:

[1, 2, 4, 8, 67, 134, 268, 536, 38677, 77354, 154708, 309416, 2591359, 5182718, 10365436, 20730872]

約数ペア:

[(1, 20730872), (2, 10365436), (4, 5182718), (8, 2591359), (67, 309416), (134, 154708), (268, 77354), (536, 38677)]