21391935841

素因数分解:

${\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{1291}}^1$

素因数の和:1597

約数の個数: 32

約数和(自身を含む): 23129487360

約数和(自身を除く): 1737551519

約数列:

[1, 23, 71, 73, 139, 1291, 1633, 1679, 3197, 5183, 9869, 10147, 29693, 91661, 94243, 119209, 179449, 226987, 233381, 720437, 2108203, 2167589, 4127327, 6691253, 12740879, 13099777, 16570051, 153898819, 293040217, 301294871, 930084167, 21391935841]

約数ペア:

[(1, 21391935841), (23, 930084167), (71, 301294871), (73, 293040217), (139, 153898819), (1291, 16570051), (1633, 13099777), (1679, 12740879), (3197, 6691253), (5183, 4127327), (9869, 2167589), (10147, 2108203), (29693, 720437), (91661, 233381), (94243, 226987), (119209, 179449)]