21737768

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1061}}^1$

素因数の和:1277

約数の個数: 32

約数和(自身を含む): 44157960

約数和(自身を除く): 22420192

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 197, 394, 788, 1061, 1576, 2122, 2561, 4244, 5122, 8488, 10244, 13793, 20488, 27586, 55172, 110344, 209017, 418034, 836068, 1672136, 2717221, 5434442, 10868884, 21737768]

約数ペア:

[(1, 21737768), (2, 10868884), (4, 5434442), (8, 2717221), (13, 1672136), (26, 836068), (52, 418034), (104, 209017), (197, 110344), (394, 55172), (788, 27586), (1061, 20488), (1576, 13793), (2122, 10244), (2561, 8488), (4244, 5122)]