2101645

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:205

約数の個数: 32

約数和(自身を含む): 3225600

約数和(自身を除く): 1123955

約数列:

[1, 5, 7, 13, 31, 35, 65, 91, 149, 155, 217, 403, 455, 745, 1043, 1085, 1937, 2015, 2821, 4619, 5215, 9685, 13559, 14105, 23095, 32333, 60047, 67795, 161665, 300235, 420329, 2101645]

約数ペア:

[(1, 2101645), (5, 420329), (7, 300235), (13, 161665), (31, 67795), (35, 60047), (65, 32333), (91, 23095), (149, 14105), (155, 13559), (217, 9685), (403, 5215), (455, 4619), (745, 2821), (1043, 2015), (1085, 1937)]