21919548

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{457}}^1\times {\mathrm{571}}^1$

素因数の和:1042

約数の個数: 48

約数和(自身を含む): 58682624

約数和(自身を除く): 36763076

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 457, 571, 914, 1142, 1371, 1713, 1828, 2284, 2742, 3199, 3426, 3997, 5484, 6398, 6852, 7994, 9597, 11991, 12796, 15988, 19194, 23982, 38388, 47964, 260947, 521894, 782841, 1043788, 1565682, 1826629, 3131364, 3653258, 5479887, 7306516, 10959774, 21919548]

約数ペア:

[(1, 21919548), (2, 10959774), (3, 7306516), (4, 5479887), (6, 3653258), (7, 3131364), (12, 1826629), (14, 1565682), (21, 1043788), (28, 782841), (42, 521894), (84, 260947), (457, 47964), (571, 38388), (914, 23982), (1142, 19194), (1371, 15988), (1713, 12796), (1828, 11991), (2284, 9597), (2742, 7994), (3199, 6852), (3426, 6398), (3997, 5484)]