21621054

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{5657}}^1$

素因数の和:5689

約数の個数: 48

約数和(自身を含む): 54181008

約数和(自身を除く): 32559954

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 49, 78, 91, 98, 147, 182, 273, 294, 546, 637, 1274, 1911, 3822, 5657, 11314, 16971, 33942, 39599, 73541, 79198, 118797, 147082, 220623, 237594, 277193, 441246, 514787, 554386, 831579, 1029574, 1544361, 1663158, 3088722, 3603509, 7207018, 10810527, 21621054]

約数ペア:

[(1, 21621054), (2, 10810527), (3, 7207018), (6, 3603509), (7, 3088722), (13, 1663158), (14, 1544361), (21, 1029574), (26, 831579), (39, 554386), (42, 514787), (49, 441246), (78, 277193), (91, 237594), (98, 220623), (147, 147082), (182, 118797), (273, 79198), (294, 73541), (546, 39599), (637, 33942), (1274, 16971), (1911, 11314), (3822, 5657)]