21059724

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1049}}^1$

素因数の和:1302

約数の個数: 48

約数和(自身を含む): 56448000

約数和(自身を除く): 35388276

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 239, 478, 717, 956, 1049, 1434, 1673, 2098, 2868, 3147, 3346, 4196, 5019, 6294, 6692, 7343, 10038, 12588, 14686, 20076, 22029, 29372, 44058, 88116, 250711, 501422, 752133, 1002844, 1504266, 1754977, 3008532, 3509954, 5264931, 7019908, 10529862, 21059724]

約数ペア:

[(1, 21059724), (2, 10529862), (3, 7019908), (4, 5264931), (6, 3509954), (7, 3008532), (12, 1754977), (14, 1504266), (21, 1002844), (28, 752133), (42, 501422), (84, 250711), (239, 88116), (478, 44058), (717, 29372), (956, 22029), (1049, 20076), (1434, 14686), (1673, 12588), (2098, 10038), (2868, 7343), (3147, 6692), (3346, 6294), (4196, 5019)]