20339865

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4967}}^1$

素因数の和:4998

約数の個数: 48

約数和(自身を含む): 43400448

約数和(自身を除く): 23060583

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 63, 65, 91, 105, 117, 195, 273, 315, 455, 585, 819, 1365, 4095, 4967, 14901, 24835, 34769, 44703, 64571, 74505, 104307, 173845, 193713, 223515, 312921, 322855, 451997, 521535, 581139, 968565, 1355991, 1564605, 2259985, 2905695, 4067973, 6779955, 20339865]

約数ペア:

[(1, 20339865), (3, 6779955), (5, 4067973), (7, 2905695), (9, 2259985), (13, 1564605), (15, 1355991), (21, 968565), (35, 581139), (39, 521535), (45, 451997), (63, 322855), (65, 312921), (91, 223515), (105, 193713), (117, 173845), (195, 104307), (273, 74505), (315, 64571), (455, 44703), (585, 34769), (819, 24835), (1365, 14901), (4095, 4967)]