19912325965

素因数分解:

$5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1\times {\mathrm{61981}}^1$

素因数の和:62197

約数の個数: 32

約数和(自身を含む): 27918676224

約数和(自身を除く): 8006350259

約数列:

[1, 5, 7, 35, 67, 137, 335, 469, 685, 959, 2345, 4795, 9179, 45895, 61981, 64253, 309905, 321265, 433867, 2169335, 4152727, 8491397, 20763635, 29069089, 42456985, 59439779, 145345445, 297198895, 568923599, 2844617995, 3982465193, 19912325965]

約数ペア:

[(1, 19912325965), (5, 3982465193), (7, 2844617995), (35, 568923599), (67, 297198895), (137, 145345445), (335, 59439779), (469, 42456985), (685, 29069089), (959, 20763635), (2345, 8491397), (4795, 4152727), (9179, 2169335), (45895, 433867), (61981, 321265), (64253, 309905)]