19820790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20021}}^1$

素因数の和:20045

約数の個数: 48

約数和(自身を含む): 56221776

約数和(自身を除く): 36400986

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 20021, 40042, 60063, 100105, 120126, 180189, 200210, 220231, 300315, 360378, 440462, 600630, 660693, 900945, 1101155, 1321386, 1801890, 1982079, 2202310, 3303465, 3964158, 6606930, 9910395, 19820790]

約数ペア:

[(1, 19820790), (2, 9910395), (3, 6606930), (5, 3964158), (6, 3303465), (9, 2202310), (10, 1982079), (11, 1801890), (15, 1321386), (18, 1101155), (22, 900945), (30, 660693), (33, 600630), (45, 440462), (55, 360378), (66, 300315), (90, 220231), (99, 200210), (110, 180189), (165, 120126), (198, 100105), (330, 60063), (495, 40042), (990, 20021)]