21104244

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1009}}^1$

素因数の和:1109

約数の個数: 72

約数和(自身を含む): 61763520

約数和(自身を除く): 40659276

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 83, 84, 126, 166, 249, 252, 332, 498, 581, 747, 996, 1009, 1162, 1494, 1743, 2018, 2324, 2988, 3027, 3486, 4036, 5229, 6054, 6972, 7063, 9081, 10458, 12108, 14126, 18162, 20916, 21189, 28252, 36324, 42378, 63567, 83747, 84756, 127134, 167494, 251241, 254268, 334988, 502482, 586229, 753723, 1004964, 1172458, 1507446, 1758687, 2344916, 3014892, 3517374, 5276061, 7034748, 10552122, 21104244]

約数ペア:

[(1, 21104244), (2, 10552122), (3, 7034748), (4, 5276061), (6, 3517374), (7, 3014892), (9, 2344916), (12, 1758687), (14, 1507446), (18, 1172458), (21, 1004964), (28, 753723), (36, 586229), (42, 502482), (63, 334988), (83, 254268), (84, 251241), (126, 167494), (166, 127134), (249, 84756), (252, 83747), (332, 63567), (498, 42378), (581, 36324), (747, 28252), (996, 21189), (1009, 20916), (1162, 18162), (1494, 14126), (1743, 12108), (2018, 10458), (2324, 9081), (2988, 7063), (3027, 6972), (3486, 6054), (4036, 5229)]