21953085

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{229}}^1$

素因数の和:338

約数の個数: 64

約数和(自身を含む): 44513280

約数和(自身を除く): 22560195

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 83, 105, 165, 229, 231, 249, 385, 415, 581, 687, 913, 1145, 1155, 1245, 1603, 1743, 2519, 2739, 2905, 3435, 4565, 4809, 6391, 7557, 8015, 8715, 12595, 13695, 17633, 19007, 19173, 24045, 31955, 37785, 52899, 57021, 88165, 95035, 95865, 133049, 209077, 264495, 285105, 399147, 627231, 665245, 1045385, 1463539, 1995735, 3136155, 4390617, 7317695, 21953085]

約数ペア:

[(1, 21953085), (3, 7317695), (5, 4390617), (7, 3136155), (11, 1995735), (15, 1463539), (21, 1045385), (33, 665245), (35, 627231), (55, 399147), (77, 285105), (83, 264495), (105, 209077), (165, 133049), (229, 95865), (231, 95035), (249, 88165), (385, 57021), (415, 52899), (581, 37785), (687, 31955), (913, 24045), (1145, 19173), (1155, 19007), (1245, 17633), (1603, 13695), (1743, 12595), (2519, 8715), (2739, 8015), (2905, 7557), (3435, 6391), (4565, 4809)]