27321385

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 42163200

約数和(自身を除く): 14841815

約数列:

[1, 5, 7, 13, 31, 35, 65, 91, 149, 155, 169, 217, 403, 455, 745, 845, 1043, 1085, 1183, 1937, 2015, 2821, 4619, 5215, 5239, 5915, 9685, 13559, 14105, 23095, 25181, 26195, 32333, 36673, 60047, 67795, 125905, 161665, 176267, 183365, 300235, 420329, 780611, 881335, 2101645, 3903055, 5464277, 27321385]

約数ペア:

[(1, 27321385), (5, 5464277), (7, 3903055), (13, 2101645), (31, 881335), (35, 780611), (65, 420329), (91, 300235), (149, 183365), (155, 176267), (169, 161665), (217, 125905), (403, 67795), (455, 60047), (745, 36673), (845, 32333), (1043, 26195), (1085, 25181), (1183, 23095), (1937, 14105), (2015, 13559), (2821, 9685), (4619, 5915), (5215, 5239)]