19813860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10007}}^1$

素因数の和:10033

約数の個数: 72

約数和(自身を含む): 65572416

約数和(自身を除く): 45758556

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 10007, 20014, 30021, 40028, 50035, 60042, 90063, 100070, 110077, 120084, 150105, 180126, 200140, 220154, 300210, 330231, 360252, 440308, 450315, 550385, 600420, 660462, 900630, 990693, 1100770, 1320924, 1651155, 1801260, 1981386, 2201540, 3302310, 3962772, 4953465, 6604620, 9906930, 19813860]

約数ペア:

[(1, 19813860), (2, 9906930), (3, 6604620), (4, 4953465), (5, 3962772), (6, 3302310), (9, 2201540), (10, 1981386), (11, 1801260), (12, 1651155), (15, 1320924), (18, 1100770), (20, 990693), (22, 900630), (30, 660462), (33, 600420), (36, 550385), (44, 450315), (45, 440308), (55, 360252), (60, 330231), (66, 300210), (90, 220154), (99, 200140), (110, 180126), (132, 150105), (165, 120084), (180, 110077), (198, 100070), (220, 90063), (330, 60042), (396, 50035), (495, 40028), (660, 30021), (990, 20014), (1980, 10007)]