20847370

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{971}}^1$

素因数の和:1110

約数の個数: 32

約数和(自身を含む): 39890880

約数和(自身を除く): 19043510

約数列:

[1, 2, 5, 10, 19, 38, 95, 113, 190, 226, 565, 971, 1130, 1942, 2147, 4294, 4855, 9710, 10735, 18449, 21470, 36898, 92245, 109723, 184490, 219446, 548615, 1097230, 2084737, 4169474, 10423685, 20847370]

約数ペア:

[(1, 20847370), (2, 10423685), (5, 4169474), (10, 2084737), (19, 1097230), (38, 548615), (95, 219446), (113, 184490), (190, 109723), (226, 92245), (565, 36898), (971, 21470), (1130, 18449), (1942, 10735), (2147, 9710), (4294, 4855)]