19191975

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{541}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 35485824

約数和(自身を除く): 16293849

約数列:

[1, 3, 5, 11, 15, 25, 33, 43, 55, 75, 129, 165, 215, 275, 473, 541, 645, 825, 1075, 1419, 1623, 2365, 2705, 3225, 5951, 7095, 8115, 11825, 13525, 17853, 23263, 29755, 35475, 40575, 69789, 89265, 116315, 148775, 255893, 348945, 446325, 581575, 767679, 1279465, 1744725, 3838395, 6397325, 19191975]

約数ペア:

[(1, 19191975), (3, 6397325), (5, 3838395), (11, 1744725), (15, 1279465), (25, 767679), (33, 581575), (43, 446325), (55, 348945), (75, 255893), (129, 148775), (165, 116315), (215, 89265), (275, 69789), (473, 40575), (541, 35475), (645, 29755), (825, 23263), (1075, 17853), (1419, 13525), (1623, 11825), (2365, 8115), (2705, 7095), (3225, 5951)]