20210571365

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{457}}^1\times {\mathrm{6959}}^1$

素因数の和:7493

約数の個数: 32

約数和(自身を含む): 25705451520

約数和(自身を除く): 5494880155

約数列:

[1, 5, 31, 41, 155, 205, 457, 1271, 2285, 6355, 6959, 14167, 18737, 34795, 70835, 93685, 215729, 285319, 580847, 1078645, 1426595, 2904235, 3180263, 8844889, 15901315, 44224445, 98588153, 130390783, 492940765, 651953915, 4042114273, 20210571365]

約数ペア:

[(1, 20210571365), (5, 4042114273), (31, 651953915), (41, 492940765), (155, 130390783), (205, 98588153), (457, 44224445), (1271, 15901315), (2285, 8844889), (6355, 3180263), (6959, 2904235), (14167, 1426595), (18737, 1078645), (34795, 580847), (70835, 285319), (93685, 215729)]