21168966

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{283}}^1$

素因数の和:445

約数の個数: 64

約数和(自身を含む): 52674048

約数和(自身を除く): 31505082

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 137, 182, 273, 274, 283, 411, 546, 566, 822, 849, 959, 1698, 1781, 1918, 1981, 2877, 3562, 3679, 3962, 5343, 5754, 5943, 7358, 10686, 11037, 11886, 12467, 22074, 24934, 25753, 37401, 38771, 51506, 74802, 77259, 77542, 116313, 154518, 232626, 271397, 504023, 542794, 814191, 1008046, 1512069, 1628382, 3024138, 3528161, 7056322, 10584483, 21168966]

約数ペア:

[(1, 21168966), (2, 10584483), (3, 7056322), (6, 3528161), (7, 3024138), (13, 1628382), (14, 1512069), (21, 1008046), (26, 814191), (39, 542794), (42, 504023), (78, 271397), (91, 232626), (137, 154518), (182, 116313), (273, 77542), (274, 77259), (283, 74802), (411, 51506), (546, 38771), (566, 37401), (822, 25753), (849, 24934), (959, 22074), (1698, 12467), (1781, 11886), (1918, 11037), (1981, 10686), (2877, 7358), (3562, 5943), (3679, 5754), (3962, 5343)]