19771115

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2287}}^1$

素因数の和:2331

約数の個数: 32

約数和(自身を含む): 30750720

約数和(自身を除く): 10979605

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 133, 247, 455, 665, 1235, 1729, 2287, 8645, 11435, 16009, 29731, 43453, 80045, 148655, 208117, 217265, 304171, 564889, 1040585, 1520855, 2824445, 3954223, 19771115]

約数ペア:

[(1, 19771115), (5, 3954223), (7, 2824445), (13, 1520855), (19, 1040585), (35, 564889), (65, 304171), (91, 217265), (95, 208117), (133, 148655), (247, 80045), (455, 43453), (665, 29731), (1235, 16009), (1729, 11435), (2287, 8645)]