19805786

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{761}}^1$

素因数の和:807

約数の個数: 48

約数和(自身を含む): 40160448

約数和(自身を除く): 20354662

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 77, 91, 143, 154, 169, 182, 286, 338, 761, 1001, 1183, 1522, 1859, 2002, 2366, 3718, 5327, 8371, 9893, 10654, 13013, 16742, 19786, 26026, 58597, 69251, 108823, 117194, 128609, 138502, 217646, 257218, 761761, 900263, 1414699, 1523522, 1800526, 2829398, 9902893, 19805786]

約数ペア:

[(1, 19805786), (2, 9902893), (7, 2829398), (11, 1800526), (13, 1523522), (14, 1414699), (22, 900263), (26, 761761), (77, 257218), (91, 217646), (143, 138502), (154, 128609), (169, 117194), (182, 108823), (286, 69251), (338, 58597), (761, 26026), (1001, 19786), (1183, 16742), (1522, 13013), (1859, 10654), (2002, 9893), (2366, 8371), (3718, 5327)]