21157686

素因数分解:

$2^1\times 3^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{383}}^1$

素因数の和:439

約数の個数: 80

約数和(自身を含む): 53526528

約数和(自身を除く): 32368842

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 31, 33, 54, 62, 66, 81, 93, 99, 162, 186, 198, 279, 297, 341, 383, 558, 594, 682, 766, 837, 891, 1023, 1149, 1674, 1782, 2046, 2298, 2511, 3069, 3447, 4213, 5022, 6138, 6894, 8426, 9207, 10341, 11873, 12639, 18414, 20682, 23746, 25278, 27621, 31023, 35619, 37917, 55242, 62046, 71238, 75834, 106857, 113751, 130603, 213714, 227502, 261206, 320571, 341253, 391809, 641142, 682506, 783618, 961713, 1175427, 1923426, 2350854, 3526281, 7052562, 10578843, 21157686]

約数ペア:

[(1, 21157686), (2, 10578843), (3, 7052562), (6, 3526281), (9, 2350854), (11, 1923426), (18, 1175427), (22, 961713), (27, 783618), (31, 682506), (33, 641142), (54, 391809), (62, 341253), (66, 320571), (81, 261206), (93, 227502), (99, 213714), (162, 130603), (186, 113751), (198, 106857), (279, 75834), (297, 71238), (341, 62046), (383, 55242), (558, 37917), (594, 35619), (682, 31023), (766, 27621), (837, 25278), (891, 23746), (1023, 20682), (1149, 18414), (1674, 12639), (1782, 11873), (2046, 10341), (2298, 9207), (2511, 8426), (3069, 6894), (3447, 6138), (4213, 5022)]