21566748

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{13513}}^1$

素因数の和:13546

約数の個数: 48

約数和(自身を含む): 60542720

約数和(自身を除く): 38975972

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 57, 76, 84, 114, 133, 228, 266, 399, 532, 798, 1596, 13513, 27026, 40539, 54052, 81078, 94591, 162156, 189182, 256747, 283773, 378364, 513494, 567546, 770241, 1026988, 1135092, 1540482, 1797229, 3080964, 3594458, 5391687, 7188916, 10783374, 21566748]

約数ペア:

[(1, 21566748), (2, 10783374), (3, 7188916), (4, 5391687), (6, 3594458), (7, 3080964), (12, 1797229), (14, 1540482), (19, 1135092), (21, 1026988), (28, 770241), (38, 567546), (42, 513494), (57, 378364), (76, 283773), (84, 256747), (114, 189182), (133, 162156), (228, 94591), (266, 81078), (399, 54052), (532, 40539), (798, 27026), (1596, 13513)]