21395766

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{16433}}^1$

素因数の和:16476

約数の個数: 32

約数和(自身を含む): 50485248

約数和(自身を除く): 29089482

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 62, 93, 186, 217, 434, 651, 1302, 16433, 32866, 49299, 98598, 115031, 230062, 345093, 509423, 690186, 1018846, 1528269, 3056538, 3565961, 7131922, 10697883, 21395766]

約数ペア:

[(1, 21395766), (2, 10697883), (3, 7131922), (6, 3565961), (7, 3056538), (14, 1528269), (21, 1018846), (31, 690186), (42, 509423), (62, 345093), (93, 230062), (186, 115031), (217, 98598), (434, 49299), (651, 32866), (1302, 16433)]