20871036172

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1867}}^1\times {\mathrm{21013}}^1$

素因数の和:22910

約数の個数: 48

約数和(自身を含む): 43964650240

約数和(自身を除く): 23093614068

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 1867, 3734, 7468, 13069, 21013, 26138, 35473, 42026, 52276, 70946, 84052, 141892, 147091, 248311, 294182, 399247, 496622, 588364, 798494, 993244, 1596988, 2794729, 5589458, 11178916, 39231271, 78462542, 156925084, 274618897, 549237794, 745394149, 1098475588, 1490788298, 2981576596, 5217759043, 10435518086, 20871036172]

約数ペア:

[(1, 20871036172), (2, 10435518086), (4, 5217759043), (7, 2981576596), (14, 1490788298), (19, 1098475588), (28, 745394149), (38, 549237794), (76, 274618897), (133, 156925084), (266, 78462542), (532, 39231271), (1867, 11178916), (3734, 5589458), (7468, 2794729), (13069, 1596988), (21013, 993244), (26138, 798494), (35473, 588364), (42026, 496622), (52276, 399247), (70946, 294182), (84052, 248311), (141892, 147091)]