211968351

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2903}}^1$

素因数の和:2996

約数の個数: 48

約数和(自身を含む): 374499840

約数和(自身を除く): 162531489

約数列:

[1, 3, 7, 9, 19, 21, 57, 61, 63, 133, 171, 183, 399, 427, 549, 1159, 1197, 1281, 2903, 3477, 3843, 8113, 8709, 10431, 20321, 24339, 26127, 55157, 60963, 73017, 165471, 177083, 182889, 386099, 496413, 531249, 1158297, 1239581, 1593747, 3364577, 3474891, 3718743, 10093731, 11156229, 23552039, 30281193, 70656117, 211968351]

約数ペア:

[(1, 211968351), (3, 70656117), (7, 30281193), (9, 23552039), (19, 11156229), (21, 10093731), (57, 3718743), (61, 3474891), (63, 3364577), (133, 1593747), (171, 1239581), (183, 1158297), (399, 531249), (427, 496413), (549, 386099), (1159, 182889), (1197, 177083), (1281, 165471), (2903, 73017), (3477, 60963), (3843, 55157), (8113, 26127), (8709, 24339), (10431, 20321)]