21574390

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{383}}^1$

素因数の和:564

約数の個数: 32

約数和(自身を含む): 40144896

約数和(自身を除く): 18570506

約数列:

[1, 2, 5, 10, 43, 86, 131, 215, 262, 383, 430, 655, 766, 1310, 1915, 3830, 5633, 11266, 16469, 28165, 32938, 50173, 56330, 82345, 100346, 164690, 250865, 501730, 2157439, 4314878, 10787195, 21574390]

約数ペア:

[(1, 21574390), (2, 10787195), (5, 4314878), (10, 2157439), (43, 501730), (86, 250865), (131, 164690), (215, 100346), (262, 82345), (383, 56330), (430, 50173), (655, 32938), (766, 28165), (1310, 16469), (1915, 11266), (3830, 5633)]