21554310

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1667}}^1$

素因数の和:2108

約数の個数: 32

約数和(自身を含む): 51881472

約数和(自身を除く): 30327162

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 431, 862, 1293, 1667, 2155, 2586, 3334, 4310, 5001, 6465, 8335, 10002, 12930, 16670, 25005, 50010, 718477, 1436954, 2155431, 3592385, 4310862, 7184770, 10777155, 21554310]

約数ペア:

[(1, 21554310), (2, 10777155), (3, 7184770), (5, 4310862), (6, 3592385), (10, 2155431), (15, 1436954), (30, 718477), (431, 50010), (862, 25005), (1293, 16670), (1667, 12930), (2155, 10002), (2586, 8335), (3334, 6465), (4310, 5001)]