19281328

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1543}}^1$

素因数の和:1633

約数の個数: 40

約数和(自身を含む): 41354496

約数和(自身を除く): 22073168

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 71, 88, 142, 176, 284, 568, 781, 1136, 1543, 1562, 3086, 3124, 6172, 6248, 12344, 12496, 16973, 24688, 33946, 67892, 109553, 135784, 219106, 271568, 438212, 876424, 1205083, 1752848, 2410166, 4820332, 9640664, 19281328]

約数ペア:

[(1, 19281328), (2, 9640664), (4, 4820332), (8, 2410166), (11, 1752848), (16, 1205083), (22, 876424), (44, 438212), (71, 271568), (88, 219106), (142, 135784), (176, 109553), (284, 67892), (568, 33946), (781, 24688), (1136, 16973), (1543, 12496), (1562, 12344), (3086, 6248), (3124, 6172)]