21066006

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:253

約数の個数: 64

約数和(自身を含む): 47980800

約数和(自身を除く): 26914794

約数列:

[1, 2, 3, 6, 13, 26, 29, 39, 58, 67, 78, 87, 134, 139, 174, 201, 278, 377, 402, 417, 754, 834, 871, 1131, 1742, 1807, 1943, 2262, 2613, 3614, 3886, 4031, 5226, 5421, 5829, 8062, 9313, 10842, 11658, 12093, 18626, 24186, 25259, 27939, 50518, 52403, 55878, 75777, 104806, 121069, 151554, 157209, 242138, 270077, 314418, 363207, 540154, 726414, 810231, 1620462, 3511001, 7022002, 10533003, 21066006]

約数ペア:

[(1, 21066006), (2, 10533003), (3, 7022002), (6, 3511001), (13, 1620462), (26, 810231), (29, 726414), (39, 540154), (58, 363207), (67, 314418), (78, 270077), (87, 242138), (134, 157209), (139, 151554), (174, 121069), (201, 104806), (278, 75777), (377, 55878), (402, 52403), (417, 50518), (754, 27939), (834, 25259), (871, 24186), (1131, 18626), (1742, 12093), (1807, 11658), (1943, 10842), (2262, 9313), (2613, 8062), (3614, 5829), (3886, 5421), (4031, 5226)]