20923695

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{761}}^1$

素因数の和:832

約数の個数: 48

約数和(自身を含む): 39940992

約数和(自身を除く): 19017297

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 47, 65, 117, 141, 195, 235, 423, 585, 611, 705, 761, 1833, 2115, 2283, 3055, 3805, 5499, 6849, 9165, 9893, 11415, 27495, 29679, 34245, 35767, 49465, 89037, 107301, 148395, 178835, 321903, 445185, 464971, 536505, 1394913, 1609515, 2324855, 4184739, 6974565, 20923695]

約数ペア:

[(1, 20923695), (3, 6974565), (5, 4184739), (9, 2324855), (13, 1609515), (15, 1394913), (39, 536505), (45, 464971), (47, 445185), (65, 321903), (117, 178835), (141, 148395), (195, 107301), (235, 89037), (423, 49465), (585, 35767), (611, 34245), (705, 29679), (761, 27495), (1833, 11415), (2115, 9893), (2283, 9165), (3055, 6849), (3805, 5499)]