20502804

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{3643}}^1$

素因数の和:3724

約数の個数: 48

約数和(自身を含む): 55505408

約数和(自身を除く): 35002604

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 67, 84, 134, 201, 268, 402, 469, 804, 938, 1407, 1876, 2814, 3643, 5628, 7286, 10929, 14572, 21858, 25501, 43716, 51002, 76503, 102004, 153006, 244081, 306012, 488162, 732243, 976324, 1464486, 1708567, 2928972, 3417134, 5125701, 6834268, 10251402, 20502804]

約数ペア:

[(1, 20502804), (2, 10251402), (3, 6834268), (4, 5125701), (6, 3417134), (7, 2928972), (12, 1708567), (14, 1464486), (21, 976324), (28, 732243), (42, 488162), (67, 306012), (84, 244081), (134, 153006), (201, 102004), (268, 76503), (402, 51002), (469, 43716), (804, 25501), (938, 21858), (1407, 14572), (1876, 10929), (2814, 7286), (3643, 5628)]