21571284

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{256801}}^1$

素因数の和:256815

約数の個数: 24

約数和(自身を含む): 57523648

約数和(自身を除く): 35952364

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 256801, 513602, 770403, 1027204, 1540806, 1797607, 3081612, 3595214, 5392821, 7190428, 10785642, 21571284]

約数ペア:

[(1, 21571284), (2, 10785642), (3, 7190428), (4, 5392821), (6, 3595214), (7, 3081612), (12, 1797607), (14, 1540806), (21, 1027204), (28, 770403), (42, 513602), (84, 256801)]