15873921

素因数分解:

$3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1787}}^1$

素因数の和:1850

約数の個数: 32

約数和(自身を含む): 27463680

約数和(自身を除く): 11589759

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 141, 189, 329, 423, 987, 1269, 1787, 2961, 5361, 8883, 12509, 16083, 37527, 48249, 83989, 112581, 251967, 337743, 587923, 755901, 1763769, 2267703, 5291307, 15873921]

約数ペア:

[(1, 15873921), (3, 5291307), (7, 2267703), (9, 1763769), (21, 755901), (27, 587923), (47, 337743), (63, 251967), (141, 112581), (189, 83989), (329, 48249), (423, 37527), (987, 16083), (1269, 12509), (1787, 8883), (2961, 5361)]