21562744

素因数分解:

$2^3\times 7^2\times {\mathrm{67}}^1\times {\mathrm{821}}^1$

素因数の和:908

約数の個数: 48

約数和(自身を含む): 47791080

約数和(自身を除く): 26228336

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 67, 98, 134, 196, 268, 392, 469, 536, 821, 938, 1642, 1876, 3283, 3284, 3752, 5747, 6566, 6568, 11494, 13132, 22988, 26264, 40229, 45976, 55007, 80458, 110014, 160916, 220028, 321832, 385049, 440056, 770098, 1540196, 2695343, 3080392, 5390686, 10781372, 21562744]

約数ペア:

[(1, 21562744), (2, 10781372), (4, 5390686), (7, 3080392), (8, 2695343), (14, 1540196), (28, 770098), (49, 440056), (56, 385049), (67, 321832), (98, 220028), (134, 160916), (196, 110014), (268, 80458), (392, 55007), (469, 45976), (536, 40229), (821, 26264), (938, 22988), (1642, 13132), (1876, 11494), (3283, 6568), (3284, 6566), (3752, 5747)]