21752990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{1627}}^1$

素因数の和:1832

約数の個数: 32

約数和(自身を含む): 45010944

約数和(自身を除く): 23257954

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 191, 382, 955, 1337, 1627, 1910, 2674, 3254, 6685, 8135, 11389, 13370, 16270, 22778, 56945, 113890, 310757, 621514, 1553785, 2175299, 3107570, 4350598, 10876495, 21752990]

約数ペア:

[(1, 21752990), (2, 10876495), (5, 4350598), (7, 3107570), (10, 2175299), (14, 1553785), (35, 621514), (70, 310757), (191, 113890), (382, 56945), (955, 22778), (1337, 16270), (1627, 13370), (1910, 11389), (2674, 8135), (3254, 6685)]