21439125

素因数分解:

$3^2\times 5^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:116

約数の個数: 96

約数和(自身を含む): 43804800

約数和(自身を除く): 22365675

約数列:

[1, 3, 5, 9, 15, 17, 19, 25, 45, 51, 57, 59, 75, 85, 95, 125, 153, 171, 177, 225, 255, 285, 295, 323, 375, 425, 475, 531, 765, 855, 885, 969, 1003, 1121, 1125, 1275, 1425, 1475, 1615, 2125, 2375, 2655, 2907, 3009, 3363, 3825, 4275, 4425, 4845, 5015, 5605, 6375, 7125, 7375, 8075, 9027, 10089, 13275, 14535, 15045, 16815, 19057, 19125, 21375, 22125, 24225, 25075, 28025, 40375, 45135, 50445, 57171, 66375, 72675, 75225, 84075, 95285, 121125, 125375, 140125, 171513, 225675, 252225, 285855, 363375, 376125, 420375, 476425, 857565, 1128375, 1261125, 1429275, 2382125, 4287825, 7146375, 21439125]

約数ペア:

[(1, 21439125), (3, 7146375), (5, 4287825), (9, 2382125), (15, 1429275), (17, 1261125), (19, 1128375), (25, 857565), (45, 476425), (51, 420375), (57, 376125), (59, 363375), (75, 285855), (85, 252225), (95, 225675), (125, 171513), (153, 140125), (171, 125375), (177, 121125), (225, 95285), (255, 84075), (285, 75225), (295, 72675), (323, 66375), (375, 57171), (425, 50445), (475, 45135), (531, 40375), (765, 28025), (855, 25075), (885, 24225), (969, 22125), (1003, 21375), (1121, 19125), (1125, 19057), (1275, 16815), (1425, 15045), (1475, 14535), (1615, 13275), (2125, 10089), (2375, 9027), (2655, 8075), (2907, 7375), (3009, 7125), (3363, 6375), (3825, 5605), (4275, 5015), (4425, 4845)]