21508715920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{14150471}}^1$

素因数の和:14150503

約数の個数: 40

約数和(自身を含む): 52639755840

約数和(自身を除く): 31131039920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 14150471, 28300942, 56601884, 70752355, 113203768, 141504710, 226407536, 268858949, 283009420, 537717898, 566018840, 1075435796, 1132037680, 1344294745, 2150871592, 2688589490, 4301743184, 5377178980, 10754357960, 21508715920]

約数ペア:

[(1, 21508715920), (2, 10754357960), (4, 5377178980), (5, 4301743184), (8, 2688589490), (10, 2150871592), (16, 1344294745), (19, 1132037680), (20, 1075435796), (38, 566018840), (40, 537717898), (76, 283009420), (80, 268858949), (95, 226407536), (152, 141504710), (190, 113203768), (304, 70752355), (380, 56601884), (760, 28300942), (1520, 14150471)]