21191304

素因数分解:

$2^3\times 3^1\times {\mathrm{163}}^1\times {\mathrm{5417}}^1$

素因数の和:5589

約数の個数: 32

約数和(自身を含む): 53313120

約数和(自身を除く): 32121816

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 163, 326, 489, 652, 978, 1304, 1956, 3912, 5417, 10834, 16251, 21668, 32502, 43336, 65004, 130008, 882971, 1765942, 2648913, 3531884, 5297826, 7063768, 10595652, 21191304]

約数ペア:

[(1, 21191304), (2, 10595652), (3, 7063768), (4, 5297826), (6, 3531884), (8, 2648913), (12, 1765942), (24, 882971), (163, 130008), (326, 65004), (489, 43336), (652, 32502), (978, 21668), (1304, 16251), (1956, 10834), (3912, 5417)]