21160782

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{647}}^1$

素因数の和:757

約数の個数: 48

約数和(自身を含む): 48522240

約数和(自身を除く): 27361458

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 79, 138, 158, 207, 237, 414, 474, 647, 711, 1294, 1422, 1817, 1941, 3634, 3882, 5451, 5823, 10902, 11646, 14881, 16353, 29762, 32706, 44643, 51113, 89286, 102226, 133929, 153339, 267858, 306678, 460017, 920034, 1175599, 2351198, 3526797, 7053594, 10580391, 21160782]

約数ペア:

[(1, 21160782), (2, 10580391), (3, 7053594), (6, 3526797), (9, 2351198), (18, 1175599), (23, 920034), (46, 460017), (69, 306678), (79, 267858), (138, 153339), (158, 133929), (207, 102226), (237, 89286), (414, 51113), (474, 44643), (647, 32706), (711, 29762), (1294, 16353), (1422, 14881), (1817, 11646), (1941, 10902), (3634, 5823), (3882, 5451)]