19912314653

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1663}}^1\times {\mathrm{6761}}^1$

素因数の和:8465

約数の個数: 32

約数和(自身を含む): 25924534272

約数和(自身を除く): 6012219619

約数列:

[1, 7, 11, 23, 77, 161, 253, 1663, 1771, 6761, 11641, 18293, 38249, 47327, 74371, 128051, 155503, 267743, 420739, 520597, 1088521, 1710533, 2945173, 11243543, 11973731, 78704801, 123678973, 258601489, 865752811, 1810210423, 2844616379, 19912314653]

約数ペア:

[(1, 19912314653), (7, 2844616379), (11, 1810210423), (23, 865752811), (77, 258601489), (161, 123678973), (253, 78704801), (1663, 11973731), (1771, 11243543), (6761, 2945173), (11641, 1710533), (18293, 1088521), (38249, 520597), (47327, 420739), (74371, 267743), (128051, 155503)]