221544848

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{63809}}^1$

素因数の和:63855

約数の個数: 40

約数和(自身を含む): 506396160

約数和(自身を除く): 284851312

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 63809, 127618, 255236, 446663, 510472, 893326, 1020944, 1786652, 1978079, 3573304, 3956158, 7146608, 7912316, 13846553, 15824632, 27693106, 31649264, 55386212, 110772424, 221544848]

約数ペア:

[(1, 221544848), (2, 110772424), (4, 55386212), (7, 31649264), (8, 27693106), (14, 15824632), (16, 13846553), (28, 7912316), (31, 7146608), (56, 3956158), (62, 3573304), (112, 1978079), (124, 1786652), (217, 1020944), (248, 893326), (434, 510472), (496, 446663), (868, 255236), (1736, 127618), (3472, 63809)]