20511246

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:313

約数の個数: 64

約数和(自身を含む): 49116672

約数和(自身を除く): 28605426

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 67, 74, 111, 134, 197, 201, 222, 259, 394, 402, 469, 518, 591, 777, 938, 1182, 1379, 1407, 1554, 2479, 2758, 2814, 4137, 4958, 7289, 7437, 8274, 13199, 14578, 14874, 17353, 21867, 26398, 34706, 39597, 43734, 51023, 52059, 79194, 92393, 102046, 104118, 153069, 184786, 277179, 306138, 488363, 554358, 976726, 1465089, 2930178, 3418541, 6837082, 10255623, 20511246]

約数ペア:

[(1, 20511246), (2, 10255623), (3, 6837082), (6, 3418541), (7, 2930178), (14, 1465089), (21, 976726), (37, 554358), (42, 488363), (67, 306138), (74, 277179), (111, 184786), (134, 153069), (197, 104118), (201, 102046), (222, 92393), (259, 79194), (394, 52059), (402, 51023), (469, 43734), (518, 39597), (591, 34706), (777, 26398), (938, 21867), (1182, 17353), (1379, 14874), (1407, 14578), (1554, 13199), (2479, 8274), (2758, 7437), (2814, 7289), (4137, 4958)]