21875854

素因数分解:

$2^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1$

素因数の和:270

約数の個数: 64

約数和(自身を含む): 45158400

約数和(自身を除く): 23282546

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 49, 77, 91, 98, 143, 154, 182, 223, 286, 343, 446, 539, 637, 686, 1001, 1078, 1274, 1561, 2002, 2453, 2899, 3122, 3773, 4459, 4906, 5798, 7007, 7546, 8918, 10927, 14014, 17171, 20293, 21854, 31889, 34342, 40586, 49049, 63778, 76489, 98098, 120197, 142051, 152978, 223223, 240394, 284102, 446446, 841379, 994357, 1562561, 1682758, 1988714, 3125122, 10937927, 21875854]

約数ペア:

[(1, 21875854), (2, 10937927), (7, 3125122), (11, 1988714), (13, 1682758), (14, 1562561), (22, 994357), (26, 841379), (49, 446446), (77, 284102), (91, 240394), (98, 223223), (143, 152978), (154, 142051), (182, 120197), (223, 98098), (286, 76489), (343, 63778), (446, 49049), (539, 40586), (637, 34342), (686, 31889), (1001, 21854), (1078, 20293), (1274, 17171), (1561, 14014), (2002, 10927), (2453, 8918), (2899, 7546), (3122, 7007), (3773, 5798), (4459, 4906)]