21478954

素因数分解:

$2^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{3593}}^1$

素因数の和:3670

約数の個数: 24

約数和(自身を含む): 38103588

約数和(自身を除く): 16624634

約数列:

[1, 2, 7, 14, 49, 61, 98, 122, 427, 854, 2989, 3593, 5978, 7186, 25151, 50302, 176057, 219173, 352114, 438346, 1534211, 3068422, 10739477, 21478954]

約数ペア:

[(1, 21478954), (2, 10739477), (7, 3068422), (14, 1534211), (49, 438346), (61, 352114), (98, 219173), (122, 176057), (427, 50302), (854, 25151), (2989, 7186), (3593, 5978)]