21328496

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6143}}^1$

素因数の和:6189

約数の個数: 40

約数和(自身を含む): 48758784

約数和(自身を除く): 27430288

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 6143, 12286, 24572, 43001, 49144, 86002, 98288, 172004, 190433, 344008, 380866, 688016, 761732, 1333031, 1523464, 2666062, 3046928, 5332124, 10664248, 21328496]

約数ペア:

[(1, 21328496), (2, 10664248), (4, 5332124), (7, 3046928), (8, 2666062), (14, 1523464), (16, 1333031), (28, 761732), (31, 688016), (56, 380866), (62, 344008), (112, 190433), (124, 172004), (217, 98288), (248, 86002), (434, 49144), (496, 43001), (868, 24572), (1736, 12286), (3472, 6143)]