21182176

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:335

約数の個数: 48

約数和(自身を含む): 43642368

約数和(自身を除く): 22460192

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 131, 163, 248, 262, 326, 496, 524, 652, 992, 1048, 1304, 2096, 2608, 4061, 4192, 5053, 5216, 8122, 10106, 16244, 20212, 21353, 32488, 40424, 42706, 64976, 80848, 85412, 129952, 161696, 170824, 341648, 661943, 683296, 1323886, 2647772, 5295544, 10591088, 21182176]

約数ペア:

[(1, 21182176), (2, 10591088), (4, 5295544), (8, 2647772), (16, 1323886), (31, 683296), (32, 661943), (62, 341648), (124, 170824), (131, 161696), (163, 129952), (248, 85412), (262, 80848), (326, 64976), (496, 42706), (524, 40424), (652, 32488), (992, 21353), (1048, 20212), (1304, 16244), (2096, 10106), (2608, 8122), (4061, 5216), (4192, 5053)]