21047264

素因数分解:

$2^5\times 7^2\times {\mathrm{31}}^1\times {\mathrm{433}}^1$

素因数の和:488

約数の個数: 72

約数和(自身を含む): 49871808

約数和(自身を除く): 28824544

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 49, 56, 62, 98, 112, 124, 196, 217, 224, 248, 392, 433, 434, 496, 784, 866, 868, 992, 1519, 1568, 1732, 1736, 3031, 3038, 3464, 3472, 6062, 6076, 6928, 6944, 12124, 12152, 13423, 13856, 21217, 24248, 24304, 26846, 42434, 48496, 48608, 53692, 84868, 93961, 96992, 107384, 169736, 187922, 214768, 339472, 375844, 429536, 657727, 678944, 751688, 1315454, 1503376, 2630908, 3006752, 5261816, 10523632, 21047264]

約数ペア:

[(1, 21047264), (2, 10523632), (4, 5261816), (7, 3006752), (8, 2630908), (14, 1503376), (16, 1315454), (28, 751688), (31, 678944), (32, 657727), (49, 429536), (56, 375844), (62, 339472), (98, 214768), (112, 187922), (124, 169736), (196, 107384), (217, 96992), (224, 93961), (248, 84868), (392, 53692), (433, 48608), (434, 48496), (496, 42434), (784, 26846), (866, 24304), (868, 24248), (992, 21217), (1519, 13856), (1568, 13423), (1732, 12152), (1736, 12124), (3031, 6944), (3038, 6928), (3464, 6076), (3472, 6062)]