20328318

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{233}}^1$

素因数の和:409

約数の個数: 48

約数和(自身を含む): 45776016

約数和(自身を除く): 25447698

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 111, 131, 222, 233, 262, 333, 393, 466, 666, 699, 786, 1179, 1398, 2097, 2358, 4194, 4847, 8621, 9694, 14541, 17242, 25863, 29082, 30523, 43623, 51726, 61046, 77589, 87246, 91569, 155178, 183138, 274707, 549414, 1129351, 2258702, 3388053, 6776106, 10164159, 20328318]

約数ペア:

[(1, 20328318), (2, 10164159), (3, 6776106), (6, 3388053), (9, 2258702), (18, 1129351), (37, 549414), (74, 274707), (111, 183138), (131, 155178), (222, 91569), (233, 87246), (262, 77589), (333, 61046), (393, 51726), (466, 43623), (666, 30523), (699, 29082), (786, 25863), (1179, 17242), (1398, 14541), (2097, 9694), (2358, 8621), (4194, 4847)]