20895966

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12757}}^1$

素因数の和:12785

約数の個数: 48

約数和(自身を含む): 55726944

約数和(自身を除く): 34830978

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 91, 117, 126, 182, 234, 273, 546, 819, 1638, 12757, 25514, 38271, 76542, 89299, 114813, 165841, 178598, 229626, 267897, 331682, 497523, 535794, 803691, 995046, 1160887, 1492569, 1607382, 2321774, 2985138, 3482661, 6965322, 10447983, 20895966]

約数ペア:

[(1, 20895966), (2, 10447983), (3, 6965322), (6, 3482661), (7, 2985138), (9, 2321774), (13, 1607382), (14, 1492569), (18, 1160887), (21, 995046), (26, 803691), (39, 535794), (42, 497523), (63, 331682), (78, 267897), (91, 229626), (117, 178598), (126, 165841), (182, 114813), (234, 89299), (273, 76542), (546, 38271), (819, 25514), (1638, 12757)]