19937874

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{1669}}^1$

素因数の和:1866

約数の個数: 32

約数和(自身を含む): 43767360

約数和(自身を除く): 23829486

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 181, 362, 543, 1086, 1669, 1991, 3338, 3982, 5007, 5973, 10014, 11946, 18359, 36718, 55077, 110154, 302089, 604178, 906267, 1812534, 3322979, 6645958, 9968937, 19937874]

約数ペア:

[(1, 19937874), (2, 9968937), (3, 6645958), (6, 3322979), (11, 1812534), (22, 906267), (33, 604178), (66, 302089), (181, 110154), (362, 55077), (543, 36718), (1086, 18359), (1669, 11946), (1991, 10014), (3338, 5973), (3982, 5007)]