21751140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{227}}^1\times {\mathrm{1597}}^1$

素因数の和:1836

約数の個数: 48

約数和(自身を含む): 61209792

約数和(自身を除く): 39458652

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 227, 454, 681, 908, 1135, 1362, 1597, 2270, 2724, 3194, 3405, 4540, 4791, 6388, 6810, 7985, 9582, 13620, 15970, 19164, 23955, 31940, 47910, 95820, 362519, 725038, 1087557, 1450076, 1812595, 2175114, 3625190, 4350228, 5437785, 7250380, 10875570, 21751140]

約数ペア:

[(1, 21751140), (2, 10875570), (3, 7250380), (4, 5437785), (5, 4350228), (6, 3625190), (10, 2175114), (12, 1812595), (15, 1450076), (20, 1087557), (30, 725038), (60, 362519), (227, 95820), (454, 47910), (681, 31940), (908, 23955), (1135, 19164), (1362, 15970), (1597, 13620), (2270, 9582), (2724, 7985), (3194, 6810), (3405, 6388), (4540, 4791)]