21560325

素因数分解:

$3^1\times 5^2\times {\mathrm{389}}^1\times {\mathrm{739}}^1$

素因数の和:1141

約数の個数: 24

約数和(自身を含む): 35786400

約数和(自身を除く): 14226075

約数列:

[1, 3, 5, 15, 25, 75, 389, 739, 1167, 1945, 2217, 3695, 5835, 9725, 11085, 18475, 29175, 55425, 287471, 862413, 1437355, 4312065, 7186775, 21560325]

約数ペア:

[(1, 21560325), (3, 7186775), (5, 4312065), (15, 1437355), (25, 862413), (75, 287471), (389, 55425), (739, 29175), (1167, 18475), (1945, 11085), (2217, 9725), (3695, 5835)]