21977384

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19211}}^1$

素因数の和:19241

約数の個数: 32

約数和(自身を含む): 48414240

約数和(自身を除く): 26436856

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 19211, 38422, 76844, 153688, 211321, 249743, 422642, 499486, 845284, 998972, 1690568, 1997944, 2747173, 5494346, 10988692, 21977384]

約数ペア:

[(1, 21977384), (2, 10988692), (4, 5494346), (8, 2747173), (11, 1997944), (13, 1690568), (22, 998972), (26, 845284), (44, 499486), (52, 422642), (88, 249743), (104, 211321), (143, 153688), (286, 76844), (572, 38422), (1144, 19211)]