21291168

素因数分解:

$2^5\times 3^1\times {\mathrm{131}}^1\times {\mathrm{1693}}^1$

素因数の和:1837

約数の個数: 48

約数和(自身を含む): 56349216

約数和(自身を除く): 35058048

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 131, 262, 393, 524, 786, 1048, 1572, 1693, 2096, 3144, 3386, 4192, 5079, 6288, 6772, 10158, 12576, 13544, 20316, 27088, 40632, 54176, 81264, 162528, 221783, 443566, 665349, 887132, 1330698, 1774264, 2661396, 3548528, 5322792, 7097056, 10645584, 21291168]

約数ペア:

[(1, 21291168), (2, 10645584), (3, 7097056), (4, 5322792), (6, 3548528), (8, 2661396), (12, 1774264), (16, 1330698), (24, 887132), (32, 665349), (48, 443566), (96, 221783), (131, 162528), (262, 81264), (393, 54176), (524, 40632), (786, 27088), (1048, 20316), (1572, 13544), (1693, 12576), (2096, 10158), (3144, 6772), (3386, 6288), (4192, 5079)]