28345911

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:307

約数の個数: 32

約数和(自身を含む): 42577920

約数和(自身を除く): 14232009

約数列:

[1, 3, 11, 33, 79, 83, 131, 237, 249, 393, 869, 913, 1441, 2607, 2739, 4323, 6557, 10349, 10873, 19671, 31047, 32619, 72127, 113839, 119603, 216381, 341517, 358809, 858967, 2576901, 9448637, 28345911]

約数ペア:

[(1, 28345911), (3, 9448637), (11, 2576901), (33, 858967), (79, 358809), (83, 341517), (131, 216381), (237, 119603), (249, 113839), (393, 72127), (869, 32619), (913, 31047), (1441, 19671), (2607, 10873), (2739, 10349), (4323, 6557)]