21472275

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1531}}^1$

素因数の和:1572

約数の個数: 48

約数和(自身を含む): 41033088

約数和(自身を除く): 19560813

約数列:

[1, 3, 5, 11, 15, 17, 25, 33, 51, 55, 75, 85, 165, 187, 255, 275, 425, 561, 825, 935, 1275, 1531, 2805, 4593, 4675, 7655, 14025, 16841, 22965, 26027, 38275, 50523, 78081, 84205, 114825, 130135, 252615, 286297, 390405, 421025, 650675, 858891, 1263075, 1431485, 1952025, 4294455, 7157425, 21472275]

約数ペア:

[(1, 21472275), (3, 7157425), (5, 4294455), (11, 1952025), (15, 1431485), (17, 1263075), (25, 858891), (33, 650675), (51, 421025), (55, 390405), (75, 286297), (85, 252615), (165, 130135), (187, 114825), (255, 84205), (275, 78081), (425, 50523), (561, 38275), (825, 26027), (935, 22965), (1275, 16841), (1531, 14025), (2805, 7655), (4593, 4675)]