19986183

素因数分解:

$3^4\times 7^1\times {\mathrm{101}}^1\times {\mathrm{349}}^1$

素因数の和:469

約数の個数: 40

約数和(自身を含む): 34557600

約数和(自身を除く): 14571417

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 101, 189, 303, 349, 567, 707, 909, 1047, 2121, 2443, 2727, 3141, 6363, 7329, 8181, 9423, 19089, 21987, 28269, 35249, 57267, 65961, 105747, 197883, 246743, 317241, 740229, 951723, 2220687, 2855169, 6662061, 19986183]

約数ペア:

[(1, 19986183), (3, 6662061), (7, 2855169), (9, 2220687), (21, 951723), (27, 740229), (63, 317241), (81, 246743), (101, 197883), (189, 105747), (303, 65961), (349, 57267), (567, 35249), (707, 28269), (909, 21987), (1047, 19089), (2121, 9423), (2443, 8181), (2727, 7329), (3141, 6363)]