19633055

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 26671680

約数和(自身を除く): 7038625

約数列:

[1, 5, 13, 41, 53, 65, 139, 205, 265, 533, 689, 695, 1807, 2173, 2665, 3445, 5699, 7367, 9035, 10865, 28249, 28495, 36835, 74087, 95771, 141245, 302047, 370435, 478855, 1510235, 3926611, 19633055]

約数ペア:

[(1, 19633055), (5, 3926611), (13, 1510235), (41, 478855), (53, 370435), (65, 302047), (139, 141245), (205, 95771), (265, 74087), (533, 36835), (689, 28495), (695, 28249), (1807, 10865), (2173, 9035), (2665, 7367), (3445, 5699)]