21114500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^2\times {\mathrm{349}}^1$

素因数の和:390

約数の個数: 72

約数和(自身を含む): 50832600

約数和(自身を除く): 29718100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 121, 125, 220, 242, 250, 275, 349, 484, 500, 550, 605, 698, 1100, 1210, 1375, 1396, 1745, 2420, 2750, 3025, 3490, 3839, 5500, 6050, 6980, 7678, 8725, 12100, 15125, 15356, 17450, 19195, 30250, 34900, 38390, 42229, 43625, 60500, 76780, 84458, 87250, 95975, 168916, 174500, 191950, 211145, 383900, 422290, 479875, 844580, 959750, 1055725, 1919500, 2111450, 4222900, 5278625, 10557250, 21114500]

約数ペア:

[(1, 21114500), (2, 10557250), (4, 5278625), (5, 4222900), (10, 2111450), (11, 1919500), (20, 1055725), (22, 959750), (25, 844580), (44, 479875), (50, 422290), (55, 383900), (100, 211145), (110, 191950), (121, 174500), (125, 168916), (220, 95975), (242, 87250), (250, 84458), (275, 76780), (349, 60500), (484, 43625), (500, 42229), (550, 38390), (605, 34900), (698, 30250), (1100, 19195), (1210, 17450), (1375, 15356), (1396, 15125), (1745, 12100), (2420, 8725), (2750, 7678), (3025, 6980), (3490, 6050), (3839, 5500)]