21610125

素因数分解:

$3^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{337}}^1$

素因数の和:380

約数の個数: 64

約数和(自身を含む): 42182400

約数和(自身を除く): 20572275

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 45, 57, 75, 95, 125, 135, 171, 225, 285, 337, 375, 475, 513, 675, 855, 1011, 1125, 1425, 1685, 2375, 2565, 3033, 3375, 4275, 5055, 6403, 7125, 8425, 9099, 12825, 15165, 19209, 21375, 25275, 32015, 42125, 45495, 57627, 64125, 75825, 96045, 126375, 160075, 172881, 227475, 288135, 379125, 480225, 800375, 864405, 1137375, 1440675, 2401125, 4322025, 7203375, 21610125]

約数ペア:

[(1, 21610125), (3, 7203375), (5, 4322025), (9, 2401125), (15, 1440675), (19, 1137375), (25, 864405), (27, 800375), (45, 480225), (57, 379125), (75, 288135), (95, 227475), (125, 172881), (135, 160075), (171, 126375), (225, 96045), (285, 75825), (337, 64125), (375, 57627), (475, 45495), (513, 42125), (675, 32015), (855, 25275), (1011, 21375), (1125, 19209), (1425, 15165), (1685, 12825), (2375, 9099), (2565, 8425), (3033, 7125), (3375, 6403), (4275, 5055)]