20921495415

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{32436427}}^1$

素因数の和:32436478

約数の個数: 16

約数和(自身を含む): 34252867968

約数和(自身を除く): 13331372553

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 32436427, 97309281, 162182135, 486546405, 1394766361, 4184299083, 6973831805, 20921495415]

約数ペア:

[(1, 20921495415), (3, 6973831805), (5, 4184299083), (15, 1394766361), (43, 486546405), (129, 162182135), (215, 97309281), (645, 32436427)]