19744515

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3299}}^1$

素因数の和:3336

約数の個数: 48

約数和(自身を含む): 41184000

約数和(自身を除く): 21439485

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 57, 63, 95, 105, 133, 171, 285, 315, 399, 665, 855, 1197, 1995, 3299, 5985, 9897, 16495, 23093, 29691, 49485, 62681, 69279, 115465, 148455, 188043, 207837, 313405, 346395, 438767, 564129, 940215, 1039185, 1316301, 2193835, 2820645, 3948903, 6581505, 19744515]

約数ペア:

[(1, 19744515), (3, 6581505), (5, 3948903), (7, 2820645), (9, 2193835), (15, 1316301), (19, 1039185), (21, 940215), (35, 564129), (45, 438767), (57, 346395), (63, 313405), (95, 207837), (105, 188043), (133, 148455), (171, 115465), (285, 69279), (315, 62681), (399, 49485), (665, 29691), (855, 23093), (1197, 16495), (1995, 9897), (3299, 5985)]