21122680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{27793}}^1$

素因数の和:27823

約数の個数: 32

約数和(自身を含む): 50029200

約数和(自身を除く): 28906520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 27793, 55586, 111172, 138965, 222344, 277930, 528067, 555860, 1056134, 1111720, 2112268, 2640335, 4224536, 5280670, 10561340, 21122680]

約数ペア:

[(1, 21122680), (2, 10561340), (4, 5280670), (5, 4224536), (8, 2640335), (10, 2112268), (19, 1111720), (20, 1056134), (38, 555860), (40, 528067), (76, 277930), (95, 222344), (152, 138965), (190, 111172), (380, 55586), (760, 27793)]