21514370

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1\times {\mathrm{197}}^1$

素因数の和:434

約数の個数: 32

約数和(自身を含む): 39745728

約数和(自身を除く): 18231358

約数列:

[1, 2, 5, 10, 67, 134, 163, 197, 326, 335, 394, 670, 815, 985, 1630, 1970, 10921, 13199, 21842, 26398, 32111, 54605, 64222, 65995, 109210, 131990, 160555, 321110, 2151437, 4302874, 10757185, 21514370]

約数ペア:

[(1, 21514370), (2, 10757185), (5, 4302874), (10, 2151437), (67, 321110), (134, 160555), (163, 131990), (197, 109210), (326, 65995), (335, 64222), (394, 54605), (670, 32111), (815, 26398), (985, 21842), (1630, 13199), (1970, 10921)]