20642811

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1091}}^1$

素因数の和:1171

約数の個数: 32

約数和(自身を含む): 33965568

約数和(自身を除く): 13322757

約数列:

[1, 3, 7, 17, 21, 51, 53, 119, 159, 357, 371, 901, 1091, 1113, 2703, 3273, 6307, 7637, 18547, 18921, 22911, 55641, 57823, 129829, 173469, 389487, 404761, 982991, 1214283, 2948973, 6880937, 20642811]

約数ペア:

[(1, 20642811), (3, 6880937), (7, 2948973), (17, 1214283), (21, 982991), (51, 404761), (53, 389487), (119, 173469), (159, 129829), (357, 57823), (371, 55641), (901, 22911), (1091, 18921), (1113, 18547), (2703, 7637), (3273, 6307)]