172915561

素因数分解:

$7^3\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:223

約数の個数: 48

約数和(自身を含む): 231312000

約数和(自身を除く): 58396439

約数列:

[1, 7, 13, 19, 49, 91, 133, 157, 169, 247, 343, 637, 931, 1099, 1183, 1729, 2041, 2983, 3211, 4459, 6517, 7693, 8281, 12103, 14287, 20881, 22477, 26533, 38779, 53851, 57967, 84721, 100009, 146167, 157339, 185731, 271453, 504127, 700063, 1023169, 1101373, 1300117, 1900171, 3528889, 9100819, 13301197, 24702223, 172915561]

約数ペア:

[(1, 172915561), (7, 24702223), (13, 13301197), (19, 9100819), (49, 3528889), (91, 1900171), (133, 1300117), (157, 1101373), (169, 1023169), (247, 700063), (343, 504127), (637, 271453), (931, 185731), (1099, 157339), (1183, 146167), (1729, 100009), (2041, 84721), (2983, 57967), (3211, 53851), (4459, 38779), (6517, 26533), (7693, 22477), (8281, 20881), (12103, 14287)]