42780423

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{353}}^1$

素因数の和:591

約数の個数: 32

約数和(自身を含む): 67968000

約数和(自身を除く): 25187577

約数列:

[1, 3, 7, 21, 29, 87, 199, 203, 353, 597, 609, 1059, 1393, 2471, 4179, 5771, 7413, 10237, 17313, 30711, 40397, 70247, 71659, 121191, 210741, 214977, 491729, 1475187, 2037163, 6111489, 14260141, 42780423]

約数ペア:

[(1, 42780423), (3, 14260141), (7, 6111489), (21, 2037163), (29, 1475187), (87, 491729), (199, 214977), (203, 210741), (353, 121191), (597, 71659), (609, 70247), (1059, 40397), (1393, 30711), (2471, 17313), (4179, 10237), (5771, 7413)]