21303996

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1997}}^1$

素因数の和:2138

約数の個数: 48

約数和(自身を含む): 57286656

約数和(自身を除く): 35982660

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 127, 254, 381, 508, 762, 889, 1524, 1778, 1997, 2667, 3556, 3994, 5334, 5991, 7988, 10668, 11982, 13979, 23964, 27958, 41937, 55916, 83874, 167748, 253619, 507238, 760857, 1014476, 1521714, 1775333, 3043428, 3550666, 5325999, 7101332, 10651998, 21303996]

約数ペア:

[(1, 21303996), (2, 10651998), (3, 7101332), (4, 5325999), (6, 3550666), (7, 3043428), (12, 1775333), (14, 1521714), (21, 1014476), (28, 760857), (42, 507238), (84, 253619), (127, 167748), (254, 83874), (381, 55916), (508, 41937), (762, 27958), (889, 23964), (1524, 13979), (1778, 11982), (1997, 10668), (2667, 7988), (3556, 5991), (3994, 5334)]