20705202

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1627}}^1$

素因数の和:1743

約数の個数: 48

約数和(自身を含む): 51809472

約数和(自身を除く): 31104270

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 101, 126, 202, 303, 606, 707, 909, 1414, 1627, 1818, 2121, 3254, 4242, 4881, 6363, 9762, 11389, 12726, 14643, 22778, 29286, 34167, 68334, 102501, 164327, 205002, 328654, 492981, 985962, 1150289, 1478943, 2300578, 2957886, 3450867, 6901734, 10352601, 20705202]

約数ペア:

[(1, 20705202), (2, 10352601), (3, 6901734), (6, 3450867), (7, 2957886), (9, 2300578), (14, 1478943), (18, 1150289), (21, 985962), (42, 492981), (63, 328654), (101, 205002), (126, 164327), (202, 102501), (303, 68334), (606, 34167), (707, 29286), (909, 22778), (1414, 14643), (1627, 12726), (1818, 11389), (2121, 9762), (3254, 6363), (4242, 4881)]